1/*
2   +----------------------------------------------------------------------+
3   | Zend Engine                                                          |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
6   +----------------------------------------------------------------------+
7   | This source file is subject to version 2.00 of the Zend license,     |
8   | that is bundled with this package in the file LICENSE, and is        |
9   | available through the world-wide-web at the following url:           |
10   | http://www.zend.com/license/2_00.txt.                                |
11   | If you did not receive a copy of the Zend license and are unable to  |
12   | obtain it through the world-wide-web, please send a note to          |
13   | license@zend.com so we can mail you a copy immediately.              |
14   +----------------------------------------------------------------------+
15   | Authors: Andi Gutmans <andi@zend.com>                                |
16   |          Zeev Suraski <zeev@zend.com>                                |
17   +----------------------------------------------------------------------+
18*/
19
20/* $Id$ */
21
22#include "zend.h"
23#include "zend_API.h"
24#include "zend_builtin_functions.h"
25#include "zend_constants.h"
26#include "zend_ini.h"
27#include "zend_exceptions.h"
28#include "zend_extensions.h"
29#include "zend_closures.h"
30
31#undef ZEND_TEST_EXCEPTIONS
32
33static ZEND_FUNCTION(zend_version);
34static ZEND_FUNCTION(func_num_args);
35static ZEND_FUNCTION(func_get_arg);
36static ZEND_FUNCTION(func_get_args);
37static ZEND_FUNCTION(strlen);
38static ZEND_FUNCTION(strcmp);
39static ZEND_FUNCTION(strncmp);
40static ZEND_FUNCTION(strcasecmp);
41static ZEND_FUNCTION(strncasecmp);
42static ZEND_FUNCTION(each);
43static ZEND_FUNCTION(error_reporting);
44static ZEND_FUNCTION(define);
45static ZEND_FUNCTION(defined);
46static ZEND_FUNCTION(get_class);
47static ZEND_FUNCTION(get_called_class);
48static ZEND_FUNCTION(get_parent_class);
49static ZEND_FUNCTION(method_exists);
50static ZEND_FUNCTION(property_exists);
51static ZEND_FUNCTION(class_exists);
52static ZEND_FUNCTION(interface_exists);
53static ZEND_FUNCTION(trait_exists);
54static ZEND_FUNCTION(function_exists);
55static ZEND_FUNCTION(class_alias);
56#if ZEND_DEBUG
57static ZEND_FUNCTION(leak);
58static ZEND_FUNCTION(leak_variable);
59#ifdef ZEND_TEST_EXCEPTIONS
60static ZEND_FUNCTION(crash);
61#endif
62#endif
63static ZEND_FUNCTION(get_included_files);
64static ZEND_FUNCTION(is_subclass_of);
65static ZEND_FUNCTION(is_a);
66static ZEND_FUNCTION(get_class_vars);
67static ZEND_FUNCTION(get_object_vars);
68static ZEND_FUNCTION(get_class_methods);
69static ZEND_FUNCTION(trigger_error);
70static ZEND_FUNCTION(set_error_handler);
71static ZEND_FUNCTION(restore_error_handler);
72static ZEND_FUNCTION(set_exception_handler);
73static ZEND_FUNCTION(restore_exception_handler);
74static ZEND_FUNCTION(get_declared_classes);
75static ZEND_FUNCTION(get_declared_traits);
76static ZEND_FUNCTION(get_declared_interfaces);
77static ZEND_FUNCTION(get_defined_functions);
78static ZEND_FUNCTION(get_defined_vars);
79static ZEND_FUNCTION(create_function);
80static ZEND_FUNCTION(get_resource_type);
81static ZEND_FUNCTION(get_resources);
82static ZEND_FUNCTION(get_loaded_extensions);
83static ZEND_FUNCTION(extension_loaded);
84static ZEND_FUNCTION(get_extension_funcs);
85static ZEND_FUNCTION(get_defined_constants);
86static ZEND_FUNCTION(debug_backtrace);
87static ZEND_FUNCTION(debug_print_backtrace);
88#if ZEND_DEBUG
89static ZEND_FUNCTION(zend_test_func);
90#ifdef ZTS
91static ZEND_FUNCTION(zend_thread_id);
92#endif
93#endif
94static ZEND_FUNCTION(gc_collect_cycles);
95static ZEND_FUNCTION(gc_enabled);
96static ZEND_FUNCTION(gc_enable);
97static ZEND_FUNCTION(gc_disable);
98
99/* {{{ arginfo */
100ZEND_BEGIN_ARG_INFO(arginfo_zend__void, 0)
101ZEND_END_ARG_INFO()
102
103ZEND_BEGIN_ARG_INFO_EX(arginfo_func_get_arg, 0, 0, 1)
104    ZEND_ARG_INFO(0, arg_num)
105ZEND_END_ARG_INFO()
106
107ZEND_BEGIN_ARG_INFO_EX(arginfo_strlen, 0, 0, 1)
108    ZEND_ARG_INFO(0, str)
109ZEND_END_ARG_INFO()
110
111ZEND_BEGIN_ARG_INFO_EX(arginfo_strcmp, 0, 0, 2)
112    ZEND_ARG_INFO(0, str1)
113    ZEND_ARG_INFO(0, str2)
114ZEND_END_ARG_INFO()
115
116ZEND_BEGIN_ARG_INFO_EX(arginfo_strncmp, 0, 0, 3)
117    ZEND_ARG_INFO(0, str1)
118    ZEND_ARG_INFO(0, str2)
119    ZEND_ARG_INFO(0, len)
120ZEND_END_ARG_INFO()
121
122ZEND_BEGIN_ARG_INFO_EX(arginfo_each, 0, 0, 1)
123    ZEND_ARG_INFO(1, arr)
124ZEND_END_ARG_INFO()
125
126ZEND_BEGIN_ARG_INFO_EX(arginfo_error_reporting, 0, 0, 0)
127    ZEND_ARG_INFO(0, new_error_level)
128ZEND_END_ARG_INFO()
129
130ZEND_BEGIN_ARG_INFO_EX(arginfo_define, 0, 0, 3)
131    ZEND_ARG_INFO(0, constant_name)
132    ZEND_ARG_INFO(0, value)
133    ZEND_ARG_INFO(0, case_insensitive)
134ZEND_END_ARG_INFO()
135
136ZEND_BEGIN_ARG_INFO_EX(arginfo_defined, 0, 0, 1)
137    ZEND_ARG_INFO(0, constant_name)
138ZEND_END_ARG_INFO()
139
140ZEND_BEGIN_ARG_INFO_EX(arginfo_get_class, 0, 0, 0)
141    ZEND_ARG_INFO(0, object)
142ZEND_END_ARG_INFO()
143
144ZEND_BEGIN_ARG_INFO_EX(arginfo_is_subclass_of, 0, 0, 2)
145    ZEND_ARG_INFO(0, object)
146    ZEND_ARG_INFO(0, class_name)
147    ZEND_ARG_INFO(0, allow_string)
148ZEND_END_ARG_INFO()
149
150ZEND_BEGIN_ARG_INFO_EX(arginfo_get_class_vars, 0, 0, 1)
151    ZEND_ARG_INFO(0, class_name)
152ZEND_END_ARG_INFO()
153
154ZEND_BEGIN_ARG_INFO_EX(arginfo_get_object_vars, 0, 0, 1)
155    ZEND_ARG_INFO(0, obj)
156ZEND_END_ARG_INFO()
157
158ZEND_BEGIN_ARG_INFO_EX(arginfo_get_class_methods, 0, 0, 1)
159    ZEND_ARG_INFO(0, class)
160ZEND_END_ARG_INFO()
161
162ZEND_BEGIN_ARG_INFO_EX(arginfo_method_exists, 0, 0, 2)
163    ZEND_ARG_INFO(0, object)
164    ZEND_ARG_INFO(0, method)
165ZEND_END_ARG_INFO()
166
167ZEND_BEGIN_ARG_INFO_EX(arginfo_property_exists, 0, 0, 2)
168    ZEND_ARG_INFO(0, object_or_class)
169    ZEND_ARG_INFO(0, property_name)
170ZEND_END_ARG_INFO()
171
172ZEND_BEGIN_ARG_INFO_EX(arginfo_class_exists, 0, 0, 1)
173    ZEND_ARG_INFO(0, classname)
174    ZEND_ARG_INFO(0, autoload)
175ZEND_END_ARG_INFO()
176
177ZEND_BEGIN_ARG_INFO_EX(arginfo_trait_exists, 0, 0, 1)
178    ZEND_ARG_INFO(0, traitname)
179    ZEND_ARG_INFO(0, autoload)
180ZEND_END_ARG_INFO()
181
182ZEND_BEGIN_ARG_INFO_EX(arginfo_function_exists, 0, 0, 1)
183    ZEND_ARG_INFO(0, function_name)
184ZEND_END_ARG_INFO()
185
186ZEND_BEGIN_ARG_INFO_EX(arginfo_class_alias, 0, 0, 2)
187    ZEND_ARG_INFO(0, user_class_name)
188    ZEND_ARG_INFO(0, alias_name)
189    ZEND_ARG_INFO(0, autoload)
190ZEND_END_ARG_INFO()
191
192#if ZEND_DEBUG
193ZEND_BEGIN_ARG_INFO_EX(arginfo_leak_variable, 0, 0, 1)
194    ZEND_ARG_INFO(0, variable)
195    ZEND_ARG_INFO(0, leak_data)
196ZEND_END_ARG_INFO()
197#endif
198
199ZEND_BEGIN_ARG_INFO_EX(arginfo_trigger_error, 0, 0, 1)
200    ZEND_ARG_INFO(0, message)
201    ZEND_ARG_INFO(0, error_type)
202ZEND_END_ARG_INFO()
203
204ZEND_BEGIN_ARG_INFO_EX(arginfo_set_error_handler, 0, 0, 1)
205    ZEND_ARG_INFO(0, error_handler)
206    ZEND_ARG_INFO(0, error_types)
207ZEND_END_ARG_INFO()
208
209ZEND_BEGIN_ARG_INFO_EX(arginfo_set_exception_handler, 0, 0, 1)
210    ZEND_ARG_INFO(0, exception_handler)
211ZEND_END_ARG_INFO()
212
213ZEND_BEGIN_ARG_INFO_EX(arginfo_create_function, 0, 0, 2)
214    ZEND_ARG_INFO(0, args)
215    ZEND_ARG_INFO(0, code)
216ZEND_END_ARG_INFO()
217
218ZEND_BEGIN_ARG_INFO_EX(arginfo_get_resource_type, 0, 0, 1)
219    ZEND_ARG_INFO(0, res)
220ZEND_END_ARG_INFO()
221
222ZEND_BEGIN_ARG_INFO_EX(arginfo_get_resources, 0, 0, 0)
223    ZEND_ARG_INFO(0, type)
224ZEND_END_ARG_INFO()
225
226ZEND_BEGIN_ARG_INFO_EX(arginfo_get_loaded_extensions, 0, 0, 0)
227    ZEND_ARG_INFO(0, zend_extensions)
228ZEND_END_ARG_INFO()
229
230ZEND_BEGIN_ARG_INFO_EX(arginfo_get_defined_constants, 0, 0, 0)
231    ZEND_ARG_INFO(0, categorize)
232ZEND_END_ARG_INFO()
233
234ZEND_BEGIN_ARG_INFO_EX(arginfo_debug_backtrace, 0, 0, 0)
235    ZEND_ARG_INFO(0, options)
236    ZEND_ARG_INFO(0, limit)
237ZEND_END_ARG_INFO()
238
239ZEND_BEGIN_ARG_INFO_EX(arginfo_debug_print_backtrace, 0, 0, 0)
240    ZEND_ARG_INFO(0, options)
241ZEND_END_ARG_INFO()
242
243ZEND_BEGIN_ARG_INFO_EX(arginfo_extension_loaded, 0, 0, 1)
244    ZEND_ARG_INFO(0, extension_name)
245ZEND_END_ARG_INFO()
246/* }}} */
247
248static const zend_function_entry builtin_functions[] = { /* {{{ */
249    ZEND_FE(zend_version,       arginfo_zend__void)
250    ZEND_FE(func_num_args,      arginfo_zend__void)
251    ZEND_FE(func_get_arg,       arginfo_func_get_arg)
252    ZEND_FE(func_get_args,      arginfo_zend__void)
253    ZEND_FE(strlen,         arginfo_strlen)
254    ZEND_FE(strcmp,         arginfo_strcmp)
255    ZEND_FE(strncmp,        arginfo_strncmp)
256    ZEND_FE(strcasecmp,     arginfo_strcmp)
257    ZEND_FE(strncasecmp,        arginfo_strncmp)
258    ZEND_FE(each,           arginfo_each)
259    ZEND_FE(error_reporting,    arginfo_error_reporting)
260    ZEND_FE(define,         arginfo_define)
261    ZEND_FE(defined,        arginfo_defined)
262    ZEND_FE(get_class,      arginfo_get_class)
263    ZEND_FE(get_called_class,   arginfo_zend__void)
264    ZEND_FE(get_parent_class,   arginfo_get_class)
265    ZEND_FE(method_exists,      arginfo_method_exists)
266    ZEND_FE(property_exists,    arginfo_property_exists)
267    ZEND_FE(class_exists,       arginfo_class_exists)
268    ZEND_FE(interface_exists,   arginfo_class_exists)
269    ZEND_FE(trait_exists,       arginfo_trait_exists)
270    ZEND_FE(function_exists,    arginfo_function_exists)
271    ZEND_FE(class_alias,        arginfo_class_alias)
272#if ZEND_DEBUG
273    ZEND_FE(leak,               NULL)
274    ZEND_FE(leak_variable,      arginfo_leak_variable)
275#ifdef ZEND_TEST_EXCEPTIONS
276    ZEND_FE(crash,              NULL)
277#endif
278#endif
279    ZEND_FE(get_included_files, arginfo_zend__void)
280    ZEND_FALIAS(get_required_files, get_included_files,     arginfo_zend__void)
281    ZEND_FE(is_subclass_of,     arginfo_is_subclass_of)
282    ZEND_FE(is_a,           arginfo_is_subclass_of)
283    ZEND_FE(get_class_vars,     arginfo_get_class_vars)
284    ZEND_FE(get_object_vars,    arginfo_get_object_vars)
285    ZEND_FE(get_class_methods,  arginfo_get_class_methods)
286    ZEND_FE(trigger_error,      arginfo_trigger_error)
287    ZEND_FALIAS(user_error,     trigger_error,      arginfo_trigger_error)
288    ZEND_FE(set_error_handler,      arginfo_set_error_handler)
289    ZEND_FE(restore_error_handler,      arginfo_zend__void)
290    ZEND_FE(set_exception_handler,      arginfo_set_exception_handler)
291    ZEND_FE(restore_exception_handler,  arginfo_zend__void)
292    ZEND_FE(get_declared_classes,       arginfo_zend__void)
293    ZEND_FE(get_declared_traits,        arginfo_zend__void)
294    ZEND_FE(get_declared_interfaces,    arginfo_zend__void)
295    ZEND_FE(get_defined_functions,      arginfo_zend__void)
296    ZEND_FE(get_defined_vars,       arginfo_zend__void)
297    ZEND_FE(create_function,        arginfo_create_function)
298    ZEND_FE(get_resource_type,      arginfo_get_resource_type)
299    ZEND_FE(get_resources,          arginfo_get_resources)
300    ZEND_FE(get_loaded_extensions,      arginfo_get_loaded_extensions)
301    ZEND_FE(extension_loaded,       arginfo_extension_loaded)
302    ZEND_FE(get_extension_funcs,        arginfo_extension_loaded)
303    ZEND_FE(get_defined_constants,      arginfo_get_defined_constants)
304    ZEND_FE(debug_backtrace,        arginfo_debug_backtrace)
305    ZEND_FE(debug_print_backtrace,      arginfo_debug_print_backtrace)
306#if ZEND_DEBUG
307    ZEND_FE(zend_test_func,     NULL)
308#ifdef ZTS
309    ZEND_FE(zend_thread_id,     NULL)
310#endif
311#endif
312    ZEND_FE(gc_collect_cycles,  arginfo_zend__void)
313    ZEND_FE(gc_enabled,         arginfo_zend__void)
314    ZEND_FE(gc_enable,      arginfo_zend__void)
315    ZEND_FE(gc_disable,         arginfo_zend__void)
316    ZEND_FE_END
317};
318/* }}} */
319
320ZEND_MINIT_FUNCTION(core) { /* {{{ */
321    zend_class_entry class_entry;
322
323    INIT_CLASS_ENTRY(class_entry, "stdClass", NULL);
324    zend_standard_class_def = zend_register_internal_class(&class_entry TSRMLS_CC);
325
326    zend_register_default_classes(TSRMLS_C);
327
328    return SUCCESS;
329}
330/* }}} */
331
332zend_module_entry zend_builtin_module = { /* {{{ */
333    STANDARD_MODULE_HEADER,
334    "Core",
335    builtin_functions,
336    ZEND_MINIT(core),
337    NULL,
338    NULL,
339    NULL,
340    NULL,
341    ZEND_VERSION,
342    STANDARD_MODULE_PROPERTIES
343};
344/* }}} */
345
346int zend_startup_builtin_functions(TSRMLS_D) /* {{{ */
347{
348    zend_builtin_module.module_number = 0;
349    zend_builtin_module.type = MODULE_PERSISTENT;
350    return (EG(current_module) = zend_register_module_ex(&zend_builtin_module TSRMLS_CC)) == NULL ? FAILURE : SUCCESS;
351}
352/* }}} */
353
354/* {{{ proto string zend_version(void)
355   Get the version of the Zend Engine */
356ZEND_FUNCTION(zend_version)
357{
358    RETURN_STRINGL(ZEND_VERSION, sizeof(ZEND_VERSION)-1);
359}
360/* }}} */
361
362/* {{{ proto int gc_collect_cycles(void)
363   Forces collection of any existing garbage cycles.
364   Returns number of freed zvals */
365ZEND_FUNCTION(gc_collect_cycles)
366{
367    RETURN_LONG(gc_collect_cycles(TSRMLS_C));
368}
369/* }}} */
370
371/* {{{ proto void gc_enabled(void)
372   Returns status of the circular reference collector */
373ZEND_FUNCTION(gc_enabled)
374{
375    RETURN_BOOL(GC_G(gc_enabled));
376}
377/* }}} */
378
379/* {{{ proto void gc_enable(void)
380   Activates the circular reference collector */
381ZEND_FUNCTION(gc_enable)
382{
383    zend_string *key = zend_string_init("zend.enable_gc", sizeof("zend.enable_gc")-1, 0);
384    zend_alter_ini_entry_chars(key, "1", sizeof("1")-1, ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
385    zend_string_release(key);
386}
387/* }}} */
388
389/* {{{ proto void gc_disable(void)
390   Deactivates the circular reference collector */
391ZEND_FUNCTION(gc_disable)
392{
393    zend_string *key = zend_string_init("zend.enable_gc", sizeof("zend.enable_gc")-1, 0);
394    zend_alter_ini_entry_chars(key, "0", sizeof("0")-1, ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
395    zend_string_release(key);
396}
397/* }}} */
398
399/* {{{ proto int func_num_args(void)
400   Get the number of arguments that were passed to the function */
401ZEND_FUNCTION(func_num_args)
402{
403    zend_execute_data *ex = EX(prev_execute_data);
404
405    if (VM_FRAME_KIND(ex->frame_info) == VM_FRAME_NESTED_FUNCTION || VM_FRAME_KIND(ex->frame_info) == VM_FRAME_TOP_FUNCTION) {
406        RETURN_LONG(ex->num_args);
407    } else {
408        zend_error(E_WARNING, "func_num_args():  Called from the global scope - no function context");
409        RETURN_LONG(-1);
410    }
411}
412/* }}} */
413
414/* {{{ proto mixed func_get_arg(int arg_num)
415   Get the $arg_num'th argument that was passed to the function */
416ZEND_FUNCTION(func_get_arg)
417{
418    uint32_t arg_count, first_extra_arg;
419    zval *arg;
420    zend_long requested_offset;
421    zend_execute_data *ex;
422
423    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &requested_offset) == FAILURE) {
424        return;
425    }
426
427    if (requested_offset < 0) {
428        zend_error(E_WARNING, "func_get_arg():  The argument number should be >= 0");
429        RETURN_FALSE;
430    }
431
432    ex = EX(prev_execute_data);
433    if (VM_FRAME_KIND(ex->frame_info) != VM_FRAME_NESTED_FUNCTION && VM_FRAME_KIND(ex->frame_info) != VM_FRAME_TOP_FUNCTION) {
434        zend_error(E_WARNING, "func_get_arg():  Called from the global scope - no function context");
435        RETURN_FALSE;
436    }
437
438    arg_count = ex->num_args;
439
440    if (requested_offset >= arg_count) {
441        zend_error(E_WARNING, "func_get_arg():  Argument " ZEND_LONG_FMT " not passed to function", requested_offset);
442        RETURN_FALSE;
443    }
444
445    first_extra_arg = ex->func->op_array.num_args;
446    if (ex->func->op_array.fn_flags & ZEND_ACC_VARIADIC) {
447        first_extra_arg--;
448    }
449    if (requested_offset >= first_extra_arg && (ex->num_args > first_extra_arg)) {
450        arg = EX_VAR_NUM_2(ex, ex->func->op_array.last_var + ex->func->op_array.T) + (requested_offset - first_extra_arg);
451    } else {
452        arg = ZEND_CALL_ARG(ex, requested_offset + 1);
453    }
454    RETURN_ZVAL_FAST(arg);
455}
456/* }}} */
457
458/* {{{ proto array func_get_args()
459   Get an array of the arguments that were passed to the function */
460ZEND_FUNCTION(func_get_args)
461{
462    zval *p;
463    uint32_t arg_count, first_extra_arg;
464    uint32_t i;
465    zend_execute_data *ex = EX(prev_execute_data);
466
467    if (VM_FRAME_KIND(ex->frame_info) != VM_FRAME_NESTED_FUNCTION && VM_FRAME_KIND(ex->frame_info) != VM_FRAME_TOP_FUNCTION) {
468        zend_error(E_WARNING, "func_get_args():  Called from the global scope - no function context");
469        RETURN_FALSE;
470    }
471
472    arg_count = ex->num_args;
473
474    array_init_size(return_value, arg_count);
475    if (arg_count) {
476        Bucket *q;
477
478        first_extra_arg = ex->func->op_array.num_args;
479        if (ex->func->op_array.fn_flags & ZEND_ACC_VARIADIC) {
480            first_extra_arg--;
481        }
482        zend_hash_real_init(Z_ARRVAL_P(return_value), 1);
483        i = 0;
484        q = Z_ARRVAL_P(return_value)->arData;
485        p = ZEND_CALL_ARG(ex, 1);
486        if (ex->num_args > first_extra_arg) {
487            while (i < first_extra_arg) {
488                q->h = i;
489                q->key = NULL;
490                if (!Z_ISREF_P(p)) {
491                    ZVAL_COPY(&q->val, p);
492                } else {
493                    ZVAL_DUP(&q->val, Z_REFVAL_P(p));
494                }
495                p++;
496                q++;
497                i++;
498            }
499            p = EX_VAR_NUM_2(ex, ex->func->op_array.last_var + ex->func->op_array.T);
500        }
501        while (i < arg_count) {
502            q->h = i;
503            q->key = NULL;
504            if (!Z_ISREF_P(p)) {
505                ZVAL_COPY(&q->val, p);
506            } else {
507                ZVAL_DUP(&q->val, Z_REFVAL_P(p));
508            }
509            p++;
510            q++;
511            i++;
512        }
513        Z_ARRVAL_P(return_value)->nNumUsed = i;
514        Z_ARRVAL_P(return_value)->nNumOfElements = i;
515        Z_ARRVAL_P(return_value)->nNextFreeElement = i + 1;
516        Z_ARRVAL_P(return_value)->nInternalPointer = 0;
517    }
518}
519/* }}} */
520
521/* {{{ proto int strlen(string str)
522   Get string length
523   Warning: This function is special-cased by zend_compile.c and so is usually bypassed */
524ZEND_FUNCTION(strlen)
525{
526    zend_string *s;
527
528#ifndef FAST_ZPP
529    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S", &s) == FAILURE) {
530        return;
531    }
532#else
533    ZEND_PARSE_PARAMETERS_START(1, 1)
534        Z_PARAM_STR(s)
535    ZEND_PARSE_PARAMETERS_END();
536#endif
537
538    RETVAL_LONG(s->len);
539}
540/* }}} */
541
542/* {{{ proto int strcmp(string str1, string str2)
543   Binary safe string comparison */
544ZEND_FUNCTION(strcmp)
545{
546    zend_string *s1, *s2;
547
548    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "SS", &s1, &s2) == FAILURE) {
549        return;
550    }
551
552    RETURN_LONG(zend_binary_strcmp(s1->val, s1->len, s2->val, s2->len));
553}
554/* }}} */
555
556/* {{{ proto int strncmp(string str1, string str2, int len)
557   Binary safe string comparison */
558ZEND_FUNCTION(strncmp)
559{
560    zend_string *s1, *s2;
561    zend_long len;
562
563    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "SSl", &s1, &s2, &len) == FAILURE) {
564        return;
565    }
566
567    if (len < 0) {
568        zend_error(E_WARNING, "Length must be greater than or equal to 0");
569        RETURN_FALSE;
570    }
571
572    RETURN_LONG(zend_binary_strncmp(s1->val, s1->len, s2->val, s2->len, len));
573}
574/* }}} */
575
576/* {{{ proto int strcasecmp(string str1, string str2)
577   Binary safe case-insensitive string comparison */
578ZEND_FUNCTION(strcasecmp)
579{
580    zend_string *s1, *s2;
581
582    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "SS", &s1, &s2) == FAILURE) {
583        return;
584    }
585
586    RETURN_LONG(zend_binary_strcasecmp(s1->val, s1->len, s2->val, s2->len));
587}
588/* }}} */
589
590/* {{{ proto int strncasecmp(string str1, string str2, int len)
591   Binary safe string comparison */
592ZEND_FUNCTION(strncasecmp)
593{
594    zend_string *s1, *s2;
595    zend_long len;
596
597    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "SSl", &s1, &s2, &len) == FAILURE) {
598        return;
599    }
600
601    if (len < 0) {
602        zend_error(E_WARNING, "Length must be greater than or equal to 0");
603        RETURN_FALSE;
604    }
605
606    RETURN_LONG(zend_binary_strncasecmp(s1->val, s1->len, s2->val, s2->len, len));
607}
608/* }}} */
609
610/* {{{ proto array each(array arr)
611   Return the currently pointed key..value pair in the passed array, and advance the pointer to the next element */
612ZEND_FUNCTION(each)
613{
614    zval *array, *entry, tmp;
615    zend_ulong num_key;
616    HashTable *target_hash;
617    zend_string *key;
618
619    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z/", &array) == FAILURE) {
620        return;
621    }
622
623    target_hash = HASH_OF(array);
624    if (!target_hash) {
625        zend_error(E_WARNING,"Variable passed to each() is not an array or object");
626        return;
627    }
628    while (1) {
629        entry = zend_hash_get_current_data(target_hash);
630        if (!entry) {
631            RETURN_FALSE;
632        } else if (Z_TYPE_P(entry) == IS_INDIRECT) {
633            entry = Z_INDIRECT_P(entry);
634            if (Z_TYPE_P(entry) == IS_UNDEF) {
635                zend_hash_move_forward(target_hash);
636                continue;
637            }
638        }
639        break;
640    }
641    array_init_size(return_value, 4);
642    zend_hash_real_init(Z_ARRVAL_P(return_value), 0);
643
644    /* add value elements */
645    if (Z_ISREF_P(entry)) {
646        ZVAL_DUP(&tmp, Z_REFVAL_P(entry));
647        entry = &tmp;
648        if (Z_REFCOUNTED_P(entry)) Z_ADDREF_P(entry);
649    } else {
650        if (Z_REFCOUNTED_P(entry)) Z_ADDREF_P(entry);
651        if (Z_REFCOUNTED_P(entry)) Z_ADDREF_P(entry);
652    }
653    zend_hash_index_add_new(Z_ARRVAL_P(return_value), 1, entry);
654    zend_hash_str_add_new(Z_ARRVAL_P(return_value), "value", sizeof("value")-1, entry);
655
656    /* add the key elements */
657    if (zend_hash_get_current_key(target_hash, &key, &num_key, 0) == HASH_KEY_IS_STRING) {
658        ZVAL_STR_COPY(&tmp, key);
659        if (Z_REFCOUNTED(tmp)) Z_ADDREF(tmp);
660    } else {
661        ZVAL_LONG(&tmp, num_key);
662    }
663    zend_hash_index_add_new(Z_ARRVAL_P(return_value), 0, &tmp);
664    zend_hash_str_add_new(Z_ARRVAL_P(return_value), "key", sizeof("key")-1, &tmp);
665    zend_hash_move_forward(target_hash);
666}
667/* }}} */
668
669/* {{{ proto int error_reporting([int new_error_level])
670   Return the current error_reporting level, and if an argument was passed - change to the new level */
671ZEND_FUNCTION(error_reporting)
672{
673    zend_string *err;
674    int old_error_reporting;
675
676    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|S", &err) == FAILURE) {
677        return;
678    }
679
680    old_error_reporting = EG(error_reporting);
681    if(ZEND_NUM_ARGS() != 0) {
682        zend_string *key = zend_string_init("error_reporting", sizeof("error_reporting")-1, 0);
683        zend_alter_ini_entry(key, err, ZEND_INI_USER, ZEND_INI_STAGE_RUNTIME);
684        zend_string_release(key);
685    }
686
687    RETVAL_LONG(old_error_reporting);
688}
689/* }}} */
690
691/* {{{ proto bool define(string constant_name, mixed value, boolean case_insensitive=false)
692   Define a new constant */
693ZEND_FUNCTION(define)
694{
695    zend_string *name;
696    zval *val, val_free;
697    zend_bool non_cs = 0;
698    int case_sensitive = CONST_CS;
699    zend_constant c;
700
701#ifndef FAST_ZPP
702    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Sz|b", &name, &val, &non_cs) == FAILURE) {
703        return;
704    }
705#else
706    ZEND_PARSE_PARAMETERS_START(2, 3)
707        Z_PARAM_STR(name)
708        Z_PARAM_ZVAL(val)
709        Z_PARAM_OPTIONAL
710        Z_PARAM_BOOL(non_cs)
711    ZEND_PARSE_PARAMETERS_END();
712#endif
713
714    if(non_cs) {
715        case_sensitive = 0;
716    }
717
718    /* class constant, check if there is name and make sure class is valid & exists */
719    if (zend_memnstr(name->val, "::", sizeof("::") - 1, name->val + name->len)) {
720        zend_error(E_WARNING, "Class constants cannot be defined or redefined");
721        RETURN_FALSE;
722    }
723
724    ZVAL_UNDEF(&val_free);
725
726repeat:
727    switch (Z_TYPE_P(val)) {
728        case IS_LONG:
729        case IS_DOUBLE:
730        case IS_STRING:
731        case IS_FALSE:
732        case IS_TRUE:
733        case IS_RESOURCE:
734        case IS_NULL:
735            break;
736        case IS_OBJECT:
737            if (Z_TYPE(val_free) == IS_UNDEF) {
738                if (Z_OBJ_HT_P(val)->get) {
739                    zval rv;
740                    val = Z_OBJ_HT_P(val)->get(val, &rv TSRMLS_CC);
741                    ZVAL_COPY_VALUE(&val_free, val);
742                    goto repeat;
743                } else if (Z_OBJ_HT_P(val)->cast_object) {
744                    if (Z_OBJ_HT_P(val)->cast_object(val, &val_free, IS_STRING TSRMLS_CC) == SUCCESS) {
745                        val = &val_free;
746                        break;
747                    }
748                }
749            }
750            /* no break */
751        default:
752            zend_error(E_WARNING,"Constants may only evaluate to scalar values");
753            zval_ptr_dtor(&val_free);
754            RETURN_FALSE;
755    }
756
757    ZVAL_DUP(&c.value, val);
758    zval_ptr_dtor(&val_free);
759    c.flags = case_sensitive; /* non persistent */
760    c.name = zend_string_copy(name);
761    c.module_number = PHP_USER_CONSTANT;
762    if (zend_register_constant(&c TSRMLS_CC) == SUCCESS) {
763        RETURN_TRUE;
764    } else {
765        RETURN_FALSE;
766    }
767}
768/* }}} */
769
770/* {{{ proto bool defined(string constant_name)
771   Check whether a constant exists
772   Warning: This function is special-cased by zend_compile.c and so is usually bypassed */
773ZEND_FUNCTION(defined)
774{
775    zend_string *name;
776
777#ifndef FAST_ZPP
778    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S", &name) == FAILURE) {
779        return;
780    }
781#else
782    ZEND_PARSE_PARAMETERS_START(1, 1)
783        Z_PARAM_STR(name)
784    ZEND_PARSE_PARAMETERS_END();
785#endif
786
787    if (zend_get_constant_ex(name, NULL, ZEND_FETCH_CLASS_SILENT TSRMLS_CC)) {
788        RETURN_TRUE;
789    } else {
790        RETURN_FALSE;
791    }
792}
793/* }}} */
794
795/* {{{ proto string get_class([object object])
796   Retrieves the class name */
797ZEND_FUNCTION(get_class)
798{
799    zval *obj = NULL;
800
801    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|o!", &obj) == FAILURE) {
802        RETURN_FALSE;
803    }
804
805    if (!obj) {
806        if (EG(scope)) {
807            RETURN_STR(zend_string_copy(EG(scope)->name));
808        } else {
809            zend_error(E_WARNING, "get_class() called without object from outside a class");
810            RETURN_FALSE;
811        }
812    }
813
814    RETURN_STR(zend_string_copy(Z_OBJCE_P(obj)->name));
815}
816/* }}} */
817
818/* {{{ proto string get_called_class()
819   Retrieves the "Late Static Binding" class name */
820ZEND_FUNCTION(get_called_class)
821{
822    if (zend_parse_parameters_none() == FAILURE) {
823        return;
824    }
825
826    if (EX(called_scope)) {
827        RETURN_STR(zend_string_copy(EX(called_scope)->name));
828    } else if (!EG(scope))  {
829        zend_error(E_WARNING, "get_called_class() called from outside a class");
830    }
831    RETURN_FALSE;
832}
833/* }}} */
834
835/* {{{ proto string get_parent_class([mixed object])
836   Retrieves the parent class name for object or class or current scope. */
837ZEND_FUNCTION(get_parent_class)
838{
839    zval *arg;
840    zend_class_entry *ce = NULL;
841
842    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|z", &arg) == FAILURE) {
843        return;
844    }
845
846    if (!ZEND_NUM_ARGS()) {
847        ce = EG(scope);
848        if (ce && ce->parent) {
849            RETURN_STR(zend_string_copy(ce->parent->name));
850        } else {
851            RETURN_FALSE;
852        }
853    }
854
855    if (Z_TYPE_P(arg) == IS_OBJECT) {
856        ce = Z_OBJ_P(arg)->ce;
857    } else if (Z_TYPE_P(arg) == IS_STRING) {
858        ce = zend_lookup_class(Z_STR_P(arg) TSRMLS_CC);
859    }
860
861    if (ce && ce->parent) {
862        RETURN_STR(zend_string_copy(ce->parent->name));
863    } else {
864        RETURN_FALSE;
865    }
866}
867/* }}} */
868
869static void is_a_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool only_subclass) /* {{{ */
870{
871    zval *obj;
872    zend_string *class_name;
873    zend_class_entry *instance_ce;
874    zend_class_entry *ce;
875    zend_bool allow_string = only_subclass;
876    zend_bool retval;
877
878#ifndef FAST_ZPP
879    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zS|b", &obj, &class_name, &allow_string) == FAILURE) {
880        return;
881    }
882#else
883    ZEND_PARSE_PARAMETERS_START(2, 3)
884        Z_PARAM_ZVAL(obj)
885        Z_PARAM_STR(class_name)
886        Z_PARAM_OPTIONAL
887        Z_PARAM_BOOL(allow_string)
888    ZEND_PARSE_PARAMETERS_END();
889#endif
890    /*
891     * allow_string - is_a default is no, is_subclass_of is yes.
892     *   if it's allowed, then the autoloader will be called if the class does not exist.
893     *   default behaviour is different, as 'is_a' used to be used to test mixed return values
894     *   and there is no easy way to deprecate this.
895     */
896
897    if (allow_string && Z_TYPE_P(obj) == IS_STRING) {
898        instance_ce = zend_lookup_class(Z_STR_P(obj) TSRMLS_CC);
899        if (!instance_ce) {
900            RETURN_FALSE;
901        }
902    } else if (Z_TYPE_P(obj) == IS_OBJECT) {
903        instance_ce = Z_OBJCE_P(obj);
904    } else {
905        RETURN_FALSE;
906    }
907
908    ce = zend_lookup_class_ex(class_name, NULL, 0 TSRMLS_CC);
909    if (!ce) {
910        retval = 0;
911    } else {
912        if (only_subclass && instance_ce == ce) {
913            retval = 0;
914        } else {
915            retval = instanceof_function(instance_ce, ce TSRMLS_CC);
916        }
917    }
918
919    RETURN_BOOL(retval);
920}
921/* }}} */
922
923/* {{{ proto bool is_subclass_of(mixed object_or_string, string class_name [, bool allow_string=true])
924   Returns true if the object has this class as one of its parents */
925ZEND_FUNCTION(is_subclass_of)
926{
927    is_a_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
928}
929/* }}} */
930
931/* {{{ proto bool is_a(mixed object_or_string, string class_name [, bool allow_string=false])
932   Returns true if the first argument is an object and is this class or has this class as one of its parents, */
933ZEND_FUNCTION(is_a)
934{
935    is_a_impl(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
936}
937/* }}} */
938
939/* {{{ add_class_vars */
940static void add_class_vars(zend_class_entry *ce, int statics, zval *return_value TSRMLS_DC)
941{
942    zend_property_info *prop_info;
943    zval *prop, prop_copy;
944    zend_string *key;
945
946    ZEND_HASH_FOREACH_STR_KEY_PTR(&ce->properties_info, key, prop_info) {
947        if (((prop_info->flags & ZEND_ACC_SHADOW) &&
948             prop_info->ce != EG(scope)) ||
949            ((prop_info->flags & ZEND_ACC_PROTECTED) &&
950             !zend_check_protected(prop_info->ce, EG(scope))) ||
951            ((prop_info->flags & ZEND_ACC_PRIVATE) &&
952              ce != EG(scope) &&
953              prop_info->ce != EG(scope))) {
954            continue;
955        }
956        prop = NULL;
957        if (prop_info->offset >= 0) {
958            if (statics && (prop_info->flags & ZEND_ACC_STATIC) != 0) {
959                prop = &ce->default_static_members_table[prop_info->offset];
960            } else if (!statics && (prop_info->flags & ZEND_ACC_STATIC) == 0) {
961                prop = &ce->default_properties_table[prop_info->offset];
962            }
963        }
964        if (!prop || Z_TYPE_P(prop) == IS_UNDEF) {
965            continue;
966        }
967
968        /* copy: enforce read only access */
969        ZVAL_DEREF(prop);
970        if (UNEXPECTED(Z_COPYABLE_P(prop))) {
971            ZVAL_DUP(&prop_copy, prop);
972            prop = &prop_copy;
973        }
974
975        /* this is necessary to make it able to work with default array
976         * properties, returned to user */
977        if (Z_OPT_CONSTANT_P(prop)) {
978            zval_update_constant(prop, 0 TSRMLS_CC);
979        }
980
981        zend_hash_add_new(Z_ARRVAL_P(return_value), key, prop);
982    } ZEND_HASH_FOREACH_END();
983}
984/* }}} */
985
986/* {{{ proto array get_class_vars(string class_name)
987   Returns an array of default properties of the class. */
988ZEND_FUNCTION(get_class_vars)
989{
990    zend_string *class_name;
991    zend_class_entry *ce;
992
993    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S", &class_name) == FAILURE) {
994        return;
995    }
996
997    ce = zend_lookup_class(class_name TSRMLS_CC);
998    if (!ce) {
999        RETURN_FALSE;
1000    } else {
1001        array_init(return_value);
1002        zend_update_class_constants(ce TSRMLS_CC);
1003        add_class_vars(ce, 0, return_value TSRMLS_CC);
1004        add_class_vars(ce, 1, return_value TSRMLS_CC);
1005    }
1006}
1007/* }}} */
1008
1009/* {{{ proto array get_object_vars(object obj)
1010   Returns an array of object properties */
1011ZEND_FUNCTION(get_object_vars)
1012{
1013    zval *obj;
1014    zval *value;
1015    HashTable *properties;
1016    zend_string *key;
1017    zend_object *zobj;
1018
1019#ifndef FAST_ZPP
1020    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &obj) == FAILURE) {
1021        return;
1022    }
1023#else
1024    ZEND_PARSE_PARAMETERS_START(1, 1)
1025        Z_PARAM_OBJECT(obj)
1026    ZEND_PARSE_PARAMETERS_END();
1027#endif
1028
1029    if (Z_OBJ_HT_P(obj)->get_properties == NULL) {
1030        RETURN_FALSE;
1031    }
1032
1033    properties = Z_OBJ_HT_P(obj)->get_properties(obj TSRMLS_CC);
1034
1035    if (properties == NULL) {
1036        RETURN_FALSE;
1037    }
1038
1039    zobj = Z_OBJ_P(obj);
1040
1041    array_init_size(return_value, zend_hash_num_elements(properties));
1042
1043    ZEND_HASH_FOREACH_STR_KEY_VAL_IND(properties, key, value) {
1044        if (key) {
1045            if (zend_check_property_access(zobj, key TSRMLS_CC) == SUCCESS) {
1046                /* Not separating references */
1047                if (Z_REFCOUNTED_P(value)) Z_ADDREF_P(value);
1048                if (key->val[0] == 0) {
1049                    const char *prop_name, *class_name;
1050                    size_t prop_len;
1051                    zend_unmangle_property_name_ex(key, &class_name, &prop_name, &prop_len);
1052                    zend_hash_str_add_new(Z_ARRVAL_P(return_value), prop_name, prop_len, value);
1053                } else {
1054                    zend_hash_add_new(Z_ARRVAL_P(return_value), key, value);
1055                }
1056            }
1057        }
1058    } ZEND_HASH_FOREACH_END();
1059}
1060/* }}} */
1061
1062static int same_name(const char *key, const char *name, size_t name_len) /* {{{ */
1063{
1064    char *lcname = zend_str_tolower_dup(name, name_len);
1065    int ret = memcmp(lcname, key, name_len) == 0;
1066    efree(lcname);
1067    return ret;
1068}
1069/* }}} */
1070
1071/* {{{ proto array get_class_methods(mixed class)
1072   Returns an array of method names for class or class instance. */
1073ZEND_FUNCTION(get_class_methods)
1074{
1075    zval *klass;
1076    zval method_name;
1077    zend_class_entry *ce = NULL;
1078    zend_function *mptr;
1079    zend_string *key;
1080
1081    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &klass) == FAILURE) {
1082        return;
1083    }
1084
1085    if (Z_TYPE_P(klass) == IS_OBJECT) {
1086        ce = Z_OBJCE_P(klass);
1087    } else if (Z_TYPE_P(klass) == IS_STRING) {
1088        ce = zend_lookup_class(Z_STR_P(klass) TSRMLS_CC);
1089    }
1090
1091    if (!ce) {
1092        RETURN_NULL();
1093    }
1094
1095    array_init(return_value);
1096
1097    ZEND_HASH_FOREACH_STR_KEY_PTR(&ce->function_table, key, mptr) {
1098
1099        if ((mptr->common.fn_flags & ZEND_ACC_PUBLIC)
1100         || (EG(scope) &&
1101             (((mptr->common.fn_flags & ZEND_ACC_PROTECTED) &&
1102               zend_check_protected(mptr->common.scope, EG(scope)))
1103           || ((mptr->common.fn_flags & ZEND_ACC_PRIVATE) &&
1104               EG(scope) == mptr->common.scope)))) {
1105            size_t len = mptr->common.function_name->len;
1106
1107            /* Do not display old-style inherited constructors */
1108            if (!key) {
1109                ZVAL_STR_COPY(&method_name, mptr->common.function_name);
1110                zend_hash_next_index_insert_new(Z_ARRVAL_P(return_value), &method_name);
1111            } else if ((mptr->common.fn_flags & ZEND_ACC_CTOR) == 0 ||
1112                mptr->common.scope == ce ||
1113                zend_binary_strcasecmp(key->val, key->len, mptr->common.function_name->val, len) == 0) {
1114
1115                if (mptr->type == ZEND_USER_FUNCTION &&
1116                    *mptr->op_array.refcount > 1 &&
1117                    (len != key->len ||
1118                     !same_name(key->val, mptr->common.function_name->val, len))) {
1119                    ZVAL_STR_COPY(&method_name, zend_find_alias_name(mptr->common.scope, key));
1120                    zend_hash_next_index_insert_new(Z_ARRVAL_P(return_value), &method_name);
1121                } else {
1122                    ZVAL_STR_COPY(&method_name, mptr->common.function_name);
1123                    zend_hash_next_index_insert_new(Z_ARRVAL_P(return_value), &method_name);
1124                }
1125            }
1126        }
1127    } ZEND_HASH_FOREACH_END();
1128}
1129/* }}} */
1130
1131/* {{{ proto bool method_exists(object object, string method)
1132   Checks if the class method exists */
1133ZEND_FUNCTION(method_exists)
1134{
1135    zval *klass;
1136    zend_string *method_name;
1137    zend_string *lcname;
1138    zend_class_entry * ce;
1139
1140#ifndef FAST_ZPP
1141    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zS", &klass, &method_name) == FAILURE) {
1142        return;
1143    }
1144#else
1145    ZEND_PARSE_PARAMETERS_START(2, 2)
1146        Z_PARAM_ZVAL(klass)
1147        Z_PARAM_STR(method_name)
1148    ZEND_PARSE_PARAMETERS_END();
1149#endif
1150    if (Z_TYPE_P(klass) == IS_OBJECT) {
1151        ce = Z_OBJCE_P(klass);
1152    } else if (Z_TYPE_P(klass) == IS_STRING) {
1153        if ((ce = zend_lookup_class(Z_STR_P(klass) TSRMLS_CC)) == NULL) {
1154            RETURN_FALSE;
1155        }
1156    } else {
1157        RETURN_FALSE;
1158    }
1159
1160    lcname = zend_string_alloc(method_name->len, 0);
1161    zend_str_tolower_copy(lcname->val, method_name->val, method_name->len);
1162    if (zend_hash_exists(&ce->function_table, lcname)) {
1163        zend_string_free(lcname);
1164        RETURN_TRUE;
1165    } else {
1166        union _zend_function *func = NULL;
1167
1168        if (Z_TYPE_P(klass) == IS_OBJECT
1169        && Z_OBJ_HT_P(klass)->get_method != NULL
1170        && (func = Z_OBJ_HT_P(klass)->get_method(&Z_OBJ_P(klass), method_name, NULL TSRMLS_CC)) != NULL
1171        ) {
1172            if (func->type == ZEND_INTERNAL_FUNCTION
1173            && (func->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0
1174            ) {
1175                /* Returns true to the fake Closure's __invoke */
1176                RETVAL_BOOL(func->common.scope == zend_ce_closure
1177                    && zend_string_equals_literal(method_name, ZEND_INVOKE_FUNC_NAME));
1178
1179                zend_string_free(lcname);
1180                zend_string_release(func->common.function_name);
1181                efree(func);
1182                return;
1183            }
1184            efree(lcname);
1185            RETURN_TRUE;
1186        }
1187    }
1188    efree(lcname);
1189    RETURN_FALSE;
1190}
1191/* }}} */
1192
1193/* {{{ proto bool property_exists(mixed object_or_class, string property_name)
1194   Checks if the object or class has a property */
1195ZEND_FUNCTION(property_exists)
1196{
1197    zval *object;
1198    zend_string *property;
1199    zend_class_entry *ce;
1200    zend_property_info *property_info;
1201    zval property_z;
1202
1203    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zS", &object, &property) == FAILURE) {
1204        return;
1205    }
1206
1207    if (property == NULL) {
1208        RETURN_FALSE;
1209    }
1210
1211    if (Z_TYPE_P(object) == IS_STRING) {
1212        ce = zend_lookup_class(Z_STR_P(object) TSRMLS_CC);
1213        if (!ce) {
1214            RETURN_FALSE;
1215        }
1216    } else if (Z_TYPE_P(object) == IS_OBJECT) {
1217        ce = Z_OBJCE_P(object);
1218    } else {
1219        zend_error(E_WARNING, "First parameter must either be an object or the name of an existing class");
1220        RETURN_NULL();
1221    }
1222
1223    if ((property_info = zend_hash_find_ptr(&ce->properties_info, property)) != NULL
1224        && (property_info->flags & ZEND_ACC_SHADOW) == 0) {
1225        RETURN_TRUE;
1226    }
1227
1228    ZVAL_STR(&property_z, property);
1229
1230    if (Z_TYPE_P(object) ==  IS_OBJECT &&
1231        Z_OBJ_HANDLER_P(object, has_property) &&
1232        Z_OBJ_HANDLER_P(object, has_property)(object, &property_z, 2, NULL TSRMLS_CC)) {
1233        RETURN_TRUE;
1234    }
1235    RETURN_FALSE;
1236}
1237/* }}} */
1238
1239/* {{{ proto bool class_exists(string classname [, bool autoload])
1240   Checks if the class exists */
1241ZEND_FUNCTION(class_exists)
1242{
1243    zend_string *class_name;
1244    zend_string *lc_name;
1245    zend_class_entry *ce;
1246    zend_bool autoload = 1;
1247
1248#ifndef FAST_ZPP
1249    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|b", &class_name, &autoload) == FAILURE) {
1250        return;
1251    }
1252#else
1253    ZEND_PARSE_PARAMETERS_START(1, 2)
1254        Z_PARAM_STR(class_name)
1255        Z_PARAM_OPTIONAL
1256        Z_PARAM_BOOL(autoload)
1257    ZEND_PARSE_PARAMETERS_END();
1258#endif
1259
1260    if (!autoload) {
1261        if (class_name->val[0] == '\\') {
1262            /* Ignore leading "\" */
1263            lc_name = zend_string_alloc(class_name->len - 1, 0);
1264            zend_str_tolower_copy(lc_name->val, class_name->val + 1, class_name->len - 1);
1265        } else {
1266            lc_name = zend_string_alloc(class_name->len, 0);
1267            zend_str_tolower_copy(lc_name->val, class_name->val, class_name->len);
1268        }
1269        ce = zend_hash_find_ptr(EG(class_table), lc_name);
1270        zend_string_free(lc_name);
1271        RETURN_BOOL(ce && !((ce->ce_flags & (ZEND_ACC_INTERFACE | ZEND_ACC_TRAIT)) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
1272    }
1273
1274    ce = zend_lookup_class(class_name TSRMLS_CC);
1275    if (ce) {
1276        RETURN_BOOL((ce->ce_flags & (ZEND_ACC_INTERFACE | (ZEND_ACC_TRAIT - ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))) == 0);
1277    } else {
1278        RETURN_FALSE;
1279    }
1280}
1281/* }}} */
1282
1283/* {{{ proto bool interface_exists(string classname [, bool autoload])
1284   Checks if the class exists */
1285ZEND_FUNCTION(interface_exists)
1286{
1287    zend_string *iface_name, *lc_name;
1288    zend_class_entry *ce;
1289    zend_bool autoload = 1;
1290
1291#ifndef FAST_ZPP
1292    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|b", &iface_name, &autoload) == FAILURE) {
1293        return;
1294    }
1295#else
1296    ZEND_PARSE_PARAMETERS_START(1, 2)
1297        Z_PARAM_STR(iface_name)
1298        Z_PARAM_OPTIONAL
1299        Z_PARAM_BOOL(autoload)
1300    ZEND_PARSE_PARAMETERS_END();
1301#endif
1302
1303    if (!autoload) {
1304        if (iface_name->val[0] == '\\') {
1305            /* Ignore leading "\" */
1306            lc_name = zend_string_alloc(iface_name->len - 1, 0);
1307            zend_str_tolower_copy(lc_name->val, iface_name->val + 1, iface_name->len - 1);
1308        } else {
1309            lc_name = zend_string_alloc(iface_name->len, 0);
1310            zend_str_tolower_copy(lc_name->val, iface_name->val, iface_name->len);
1311        }
1312        ce = zend_hash_find_ptr(EG(class_table), lc_name);
1313        zend_string_free(lc_name);
1314        RETURN_BOOL(ce && ce->ce_flags & ZEND_ACC_INTERFACE);
1315    }
1316
1317    ce = zend_lookup_class(iface_name TSRMLS_CC);
1318    if (ce) {
1319        RETURN_BOOL((ce->ce_flags & ZEND_ACC_INTERFACE) > 0);
1320    } else {
1321        RETURN_FALSE;
1322    }
1323}
1324/* }}} */
1325
1326/* {{{ proto bool trait_exists(string traitname [, bool autoload])
1327 Checks if the trait exists */
1328ZEND_FUNCTION(trait_exists)
1329{
1330    zend_string *trait_name, *lc_name;
1331    zend_class_entry *ce;
1332    zend_bool autoload = 1;
1333
1334#ifndef FAST_ZPP
1335    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|b", &trait_name, &autoload) == FAILURE) {
1336        return;
1337    }
1338#else
1339    ZEND_PARSE_PARAMETERS_START(1, 2)
1340        Z_PARAM_STR(trait_name)
1341        Z_PARAM_OPTIONAL
1342        Z_PARAM_BOOL(autoload)
1343    ZEND_PARSE_PARAMETERS_END();
1344#endif
1345
1346    if (!autoload) {
1347        if (trait_name->val[0] == '\\') {
1348            /* Ignore leading "\" */
1349            lc_name = zend_string_alloc(trait_name->len - 1, 0);
1350            zend_str_tolower_copy(lc_name->val, trait_name->val + 1, trait_name->len - 1);
1351        } else {
1352            lc_name = zend_string_alloc(trait_name->len, 0);
1353            zend_str_tolower_copy(lc_name->val, trait_name->val, trait_name->len);
1354        }
1355        ce = zend_hash_find_ptr(EG(class_table), lc_name);
1356        zend_string_free(lc_name);
1357        RETURN_BOOL(ce && ((ce->ce_flags & ZEND_ACC_TRAIT) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS));
1358    }
1359
1360    ce = zend_lookup_class(trait_name TSRMLS_CC);
1361    if (ce) {
1362        RETURN_BOOL((ce->ce_flags & ZEND_ACC_TRAIT) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
1363    } else {
1364        RETURN_FALSE;
1365    }
1366}
1367/* }}} */
1368
1369/* {{{ proto bool function_exists(string function_name)
1370   Checks if the function exists */
1371ZEND_FUNCTION(function_exists)
1372{
1373    char *name;
1374    size_t name_len;
1375    zend_function *func;
1376    zend_string *lcname;
1377
1378#ifndef FAST_ZPP
1379    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
1380        return;
1381    }
1382#else
1383    ZEND_PARSE_PARAMETERS_START(1, 1)
1384        Z_PARAM_STRING(name, name_len)
1385    ZEND_PARSE_PARAMETERS_END();
1386#endif
1387
1388    if (name[0] == '\\') {
1389        /* Ignore leading "\" */
1390        lcname = zend_string_alloc(name_len - 1, 0);
1391        zend_str_tolower_copy(lcname->val, name + 1, name_len - 1);
1392    } else {
1393        lcname = zend_string_alloc(name_len, 0);
1394        zend_str_tolower_copy(lcname->val, name, name_len);
1395    }
1396
1397    func = zend_hash_find_ptr(EG(function_table), lcname);
1398    zend_string_free(lcname);
1399
1400    /*
1401     * A bit of a hack, but not a bad one: we see if the handler of the function
1402     * is actually one that displays "function is disabled" message.
1403     */
1404    RETURN_BOOL(func && (func->type != ZEND_INTERNAL_FUNCTION ||
1405        func->internal_function.handler != zif_display_disabled_function));
1406}
1407/* }}} */
1408
1409/* {{{ proto bool class_alias(string user_class_name , string alias_name [, bool autoload])
1410   Creates an alias for user defined class */
1411ZEND_FUNCTION(class_alias)
1412{
1413    zend_string *class_name;
1414    char *alias_name;
1415    zend_class_entry *ce;
1416    size_t alias_name_len;
1417    zend_bool autoload = 1;
1418
1419    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Ss|b", &class_name, &alias_name, &alias_name_len, &autoload) == FAILURE) {
1420        return;
1421    }
1422
1423    ce = zend_lookup_class_ex(class_name, NULL, autoload TSRMLS_CC);
1424
1425    if (ce) {
1426        if (ce->type == ZEND_USER_CLASS) {
1427            if (zend_register_class_alias_ex(alias_name, alias_name_len, ce TSRMLS_CC) == SUCCESS) {
1428                RETURN_TRUE;
1429            } else {
1430                zend_error(E_WARNING, "Cannot redeclare class %s", alias_name);
1431                RETURN_FALSE;
1432            }
1433        } else {
1434            zend_error(E_WARNING, "First argument of class_alias() must be a name of user defined class");
1435            RETURN_FALSE;
1436        }
1437    } else {
1438        zend_error(E_WARNING, "Class '%s' not found", class_name->val);
1439        RETURN_FALSE;
1440    }
1441}
1442/* }}} */
1443
1444#if ZEND_DEBUG
1445/* {{{ proto void leak(int num_bytes=3)
1446   Cause an intentional memory leak, for testing/debugging purposes */
1447ZEND_FUNCTION(leak)
1448{
1449    zend_long leakbytes=3;
1450
1451    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &leakbytes) == FAILURE) {
1452        return;
1453    }
1454
1455    emalloc(leakbytes);
1456}
1457/* }}} */
1458
1459/* {{{ proto leak_variable(mixed variable [, bool leak_data]) */
1460ZEND_FUNCTION(leak_variable)
1461{
1462    zval *zv;
1463    zend_bool leak_data = 0;
1464
1465    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &zv, &leak_data) == FAILURE) {
1466        return;
1467    }
1468
1469    if (!leak_data) {
1470        Z_ADDREF_P(zv);
1471    } else if (Z_TYPE_P(zv) == IS_RESOURCE) {
1472        Z_ADDREF_P(zv);
1473    } else if (Z_TYPE_P(zv) == IS_OBJECT) {
1474        Z_ADDREF_P(zv);
1475    } else {
1476        zend_error(E_WARNING, "Leaking non-zval data is only applicable to resources and objects");
1477    }
1478}
1479/* }}} */
1480
1481
1482#ifdef ZEND_TEST_EXCEPTIONS
1483ZEND_FUNCTION(crash)
1484{
1485    char *nowhere=NULL;
1486
1487    memcpy(nowhere, "something", sizeof("something"));
1488}
1489#endif
1490
1491#endif /* ZEND_DEBUG */
1492
1493/* {{{ proto array get_included_files(void)
1494   Returns an array with the file names that were include_once()'d */
1495ZEND_FUNCTION(get_included_files)
1496{
1497    zend_string *entry;
1498
1499    if (zend_parse_parameters_none() == FAILURE) {
1500        return;
1501    }
1502
1503    array_init(return_value);
1504    ZEND_HASH_FOREACH_STR_KEY(&EG(included_files), entry) {
1505        if (entry) {
1506            add_next_index_str(return_value, zend_string_copy(entry));
1507        }
1508    } ZEND_HASH_FOREACH_END();
1509}
1510/* }}} */
1511
1512/* {{{ proto void trigger_error(string message [, int error_type])
1513   Generates a user-level error/warning/notice message */
1514ZEND_FUNCTION(trigger_error)
1515{
1516    zend_long error_type = E_USER_NOTICE;
1517    char *message;
1518    size_t message_len;
1519
1520    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &message, &message_len, &error_type) == FAILURE) {
1521        return;
1522    }
1523
1524    switch (error_type) {
1525        case E_USER_ERROR:
1526        case E_USER_WARNING:
1527        case E_USER_NOTICE:
1528        case E_USER_DEPRECATED:
1529            break;
1530        default:
1531            zend_error(E_WARNING, "Invalid error type specified");
1532            RETURN_FALSE;
1533            break;
1534    }
1535
1536    zend_error((int)error_type, "%s", message);
1537    RETURN_TRUE;
1538}
1539/* }}} */
1540
1541/* {{{ proto string set_error_handler(string error_handler [, int error_types])
1542   Sets a user-defined error handler function.  Returns the previously defined error handler, or false on error */
1543ZEND_FUNCTION(set_error_handler)
1544{
1545    zval *error_handler;
1546    zend_string *error_handler_name = NULL;
1547    zend_long error_type = E_ALL;
1548
1549    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|l", &error_handler, &error_type) == FAILURE) {
1550        return;
1551    }
1552
1553    if (Z_TYPE_P(error_handler) != IS_NULL) { /* NULL == unset */
1554        if (!zend_is_callable(error_handler, 0, &error_handler_name TSRMLS_CC)) {
1555            zend_error(E_WARNING, "%s() expects the argument (%s) to be a valid callback",
1556                       get_active_function_name(TSRMLS_C), error_handler_name?error_handler_name->val:"unknown");
1557            zend_string_release(error_handler_name);
1558            return;
1559        }
1560        zend_string_release(error_handler_name);
1561    }
1562
1563    if (Z_TYPE(EG(user_error_handler)) != IS_UNDEF) {
1564        RETVAL_ZVAL(&EG(user_error_handler), 1, 0);
1565
1566        zend_stack_push(&EG(user_error_handlers_error_reporting), &EG(user_error_handler_error_reporting));
1567        zend_stack_push(&EG(user_error_handlers), &EG(user_error_handler));
1568    }
1569
1570    if (Z_TYPE_P(error_handler) == IS_NULL) { /* unset user-defined handler */
1571        ZVAL_UNDEF(&EG(user_error_handler));
1572        return;
1573    }
1574
1575    ZVAL_DUP(&EG(user_error_handler), error_handler);
1576    EG(user_error_handler_error_reporting) = (int)error_type;
1577}
1578/* }}} */
1579
1580/* {{{ proto void restore_error_handler(void)
1581   Restores the previously defined error handler function */
1582ZEND_FUNCTION(restore_error_handler)
1583{
1584    if (Z_TYPE(EG(user_error_handler)) != IS_UNDEF) {
1585        zval zeh;
1586
1587        ZVAL_COPY_VALUE(&zeh, &EG(user_error_handler));
1588        ZVAL_UNDEF(&EG(user_error_handler));
1589        zval_ptr_dtor(&zeh);
1590    }
1591
1592    if (zend_stack_is_empty(&EG(user_error_handlers))) {
1593        ZVAL_UNDEF(&EG(user_error_handler));
1594    } else {
1595        zval *tmp;
1596        EG(user_error_handler_error_reporting) = zend_stack_int_top(&EG(user_error_handlers_error_reporting));
1597        zend_stack_del_top(&EG(user_error_handlers_error_reporting));
1598        tmp = zend_stack_top(&EG(user_error_handlers));
1599        ZVAL_COPY_VALUE(&EG(user_error_handler), tmp);
1600        zend_stack_del_top(&EG(user_error_handlers));
1601    }
1602    RETURN_TRUE;
1603}
1604/* }}} */
1605
1606/* {{{ proto string set_exception_handler(callable exception_handler)
1607   Sets a user-defined exception handler function.  Returns the previously defined exception handler, or false on error */
1608ZEND_FUNCTION(set_exception_handler)
1609{
1610    zval *exception_handler;
1611    zend_string *exception_handler_name = NULL;
1612
1613    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &exception_handler) == FAILURE) {
1614        return;
1615    }
1616
1617    if (Z_TYPE_P(exception_handler) != IS_NULL) { /* NULL == unset */
1618        if (!zend_is_callable(exception_handler, 0, &exception_handler_name TSRMLS_CC)) {
1619            zend_error(E_WARNING, "%s() expects the argument (%s) to be a valid callback",
1620                       get_active_function_name(TSRMLS_C), exception_handler_name?exception_handler_name->val:"unknown");
1621            zend_string_release(exception_handler_name);
1622            return;
1623        }
1624        zend_string_release(exception_handler_name);
1625    }
1626
1627    if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1628        RETVAL_ZVAL(&EG(user_exception_handler), 1, 0);
1629
1630        zend_stack_push(&EG(user_exception_handlers), &EG(user_exception_handler));
1631    }
1632
1633    if (Z_TYPE_P(exception_handler) == IS_NULL) { /* unset user-defined handler */
1634        ZVAL_UNDEF(&EG(user_exception_handler));
1635        return;
1636    }
1637
1638    ZVAL_DUP(&EG(user_exception_handler), exception_handler);
1639}
1640/* }}} */
1641
1642/* {{{ proto void restore_exception_handler(void)
1643   Restores the previously defined exception handler function */
1644ZEND_FUNCTION(restore_exception_handler)
1645{
1646    if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1647        zval_ptr_dtor(&EG(user_exception_handler));
1648    }
1649    if (zend_stack_is_empty(&EG(user_exception_handlers))) {
1650        ZVAL_UNDEF(&EG(user_exception_handler));
1651    } else {
1652        zval *tmp = zend_stack_top(&EG(user_exception_handlers));
1653        ZVAL_COPY_VALUE(&EG(user_exception_handler), tmp);
1654        zend_stack_del_top(&EG(user_exception_handlers));
1655    }
1656    RETURN_TRUE;
1657}
1658/* }}} */
1659
1660static int copy_class_or_interface_name(zval *el TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
1661{
1662    zend_class_entry *ce = (zend_class_entry *)Z_PTR_P(el);
1663    zval *array = va_arg(args, zval *);
1664    uint32_t mask = va_arg(args, uint32_t);
1665    uint32_t comply = va_arg(args, uint32_t);
1666    uint32_t comply_mask = (comply)? mask:0;
1667
1668    if ((hash_key->key && hash_key->key->val[0] != 0)
1669        && (comply_mask == (ce->ce_flags & mask))) {
1670        if (ce->refcount > 1 &&
1671            (ce->name->len != hash_key->key->len ||
1672             !same_name(hash_key->key->val, ce->name->val, ce->name->len))) {
1673            add_next_index_str(array, zend_string_copy(hash_key->key));
1674        } else {
1675            add_next_index_str(array, zend_string_copy(ce->name));
1676        }
1677    }
1678    return ZEND_HASH_APPLY_KEEP;
1679}
1680/* }}} */
1681
1682/* {{{ proto array get_declared_traits()
1683   Returns an array of all declared traits. */
1684ZEND_FUNCTION(get_declared_traits)
1685{
1686    uint32_t mask = ZEND_ACC_TRAIT;
1687    uint32_t comply = 1;
1688
1689    if (zend_parse_parameters_none() == FAILURE) {
1690        return;
1691    }
1692
1693    array_init(return_value);
1694    zend_hash_apply_with_arguments(EG(class_table) TSRMLS_CC, copy_class_or_interface_name, 3, return_value, mask, comply);
1695}
1696/* }}} */
1697
1698/* {{{ proto array get_declared_classes()
1699   Returns an array of all declared classes. */
1700ZEND_FUNCTION(get_declared_classes)
1701{
1702    uint32_t mask = ZEND_ACC_INTERFACE | (ZEND_ACC_TRAIT & ~ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
1703    uint32_t comply = 0;
1704
1705    if (zend_parse_parameters_none() == FAILURE) {
1706        return;
1707    }
1708
1709    array_init(return_value);
1710    zend_hash_apply_with_arguments(EG(class_table) TSRMLS_CC, copy_class_or_interface_name, 3, return_value, mask, comply);
1711}
1712/* }}} */
1713
1714/* {{{ proto array get_declared_interfaces()
1715   Returns an array of all declared interfaces. */
1716ZEND_FUNCTION(get_declared_interfaces)
1717{
1718    uint32_t mask = ZEND_ACC_INTERFACE;
1719    uint32_t comply = 1;
1720
1721    if (zend_parse_parameters_none() == FAILURE) {
1722        return;
1723    }
1724
1725    array_init(return_value);
1726    zend_hash_apply_with_arguments(EG(class_table) TSRMLS_CC, copy_class_or_interface_name, 3, return_value, mask, comply);
1727}
1728/* }}} */
1729
1730static int copy_function_name(zval *zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
1731{
1732    zend_function *func = Z_PTR_P(zv);
1733    zval *internal_ar = va_arg(args, zval *),
1734         *user_ar     = va_arg(args, zval *);
1735
1736    if (hash_key->key == NULL || hash_key->key->val[0] == 0) {
1737        return 0;
1738    }
1739
1740    if (func->type == ZEND_INTERNAL_FUNCTION) {
1741        add_next_index_str(internal_ar, zend_string_copy(hash_key->key));
1742    } else if (func->type == ZEND_USER_FUNCTION) {
1743        add_next_index_str(user_ar, zend_string_copy(hash_key->key));
1744    }
1745
1746    return 0;
1747}
1748/* }}} */
1749
1750/* {{{ proto array get_defined_functions(void)
1751   Returns an array of all defined functions */
1752ZEND_FUNCTION(get_defined_functions)
1753{
1754    zval internal, user;
1755
1756    if (zend_parse_parameters_none() == FAILURE) {
1757        return;
1758    }
1759
1760    array_init(&internal);
1761    array_init(&user);
1762    array_init(return_value);
1763
1764    zend_hash_apply_with_arguments(EG(function_table) TSRMLS_CC, copy_function_name, 2, &internal, &user);
1765
1766    zend_hash_str_add_new(Z_ARRVAL_P(return_value), "internal", sizeof("internal")-1, &internal);
1767    zend_hash_str_add_new(Z_ARRVAL_P(return_value), "user", sizeof("user")-1, &user);
1768}
1769/* }}} */
1770
1771/* {{{ proto array get_defined_vars(void)
1772   Returns an associative array of names and values of all currently defined variable names (variables in the current scope) */
1773ZEND_FUNCTION(get_defined_vars)
1774{
1775    zend_array *symbol_table = zend_rebuild_symbol_table(TSRMLS_C);
1776
1777    ZVAL_NEW_ARR(return_value);
1778    zend_array_dup(Z_ARRVAL_P(return_value), &symbol_table->ht);
1779}
1780/* }}} */
1781
1782#define LAMBDA_TEMP_FUNCNAME    "__lambda_func"
1783/* {{{ proto string create_function(string args, string code)
1784   Creates an anonymous function, and returns its name (funny, eh?) */
1785ZEND_FUNCTION(create_function)
1786{
1787    zend_string *function_name;
1788    char *eval_code, *function_args, *function_code;
1789    size_t eval_code_length, function_args_len, function_code_len;
1790    int retval;
1791    char *eval_name;
1792
1793    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &function_args, &function_args_len, &function_code, &function_code_len) == FAILURE) {
1794        return;
1795    }
1796
1797    eval_code = (char *) emalloc(sizeof("function " LAMBDA_TEMP_FUNCNAME)
1798            +function_args_len
1799            +2  /* for the args parentheses */
1800            +2  /* for the curly braces */
1801            +function_code_len);
1802
1803    eval_code_length = sizeof("function " LAMBDA_TEMP_FUNCNAME "(") - 1;
1804    memcpy(eval_code, "function " LAMBDA_TEMP_FUNCNAME "(", eval_code_length);
1805
1806    memcpy(eval_code + eval_code_length, function_args, function_args_len);
1807    eval_code_length += function_args_len;
1808
1809    eval_code[eval_code_length++] = ')';
1810    eval_code[eval_code_length++] = '{';
1811
1812    memcpy(eval_code + eval_code_length, function_code, function_code_len);
1813    eval_code_length += function_code_len;
1814
1815    eval_code[eval_code_length++] = '}';
1816    eval_code[eval_code_length] = '\0';
1817
1818    eval_name = zend_make_compiled_string_description("runtime-created function" TSRMLS_CC);
1819    retval = zend_eval_stringl(eval_code, eval_code_length, NULL, eval_name TSRMLS_CC);
1820    efree(eval_code);
1821    efree(eval_name);
1822
1823    if (retval==SUCCESS) {
1824        zend_op_array *func;
1825        HashTable *static_variables;
1826
1827        func = zend_hash_str_find_ptr(EG(function_table), LAMBDA_TEMP_FUNCNAME, sizeof(LAMBDA_TEMP_FUNCNAME)-1);
1828        if (!func) {
1829            zend_error(E_ERROR, "Unexpected inconsistency in create_function()");
1830            RETURN_FALSE;
1831        }
1832        (*func->refcount)++;
1833
1834        function_name = zend_string_alloc(sizeof("0lambda_")+MAX_LENGTH_OF_LONG, 0);
1835        function_name->val[0] = '\0';
1836
1837        do {
1838            function_name->len = snprintf(function_name->val + 1, sizeof("lambda_")+MAX_LENGTH_OF_LONG, "lambda_%d", ++EG(lambda_count)) + 1;
1839        } while (zend_hash_add_ptr(EG(function_table), function_name, func) == NULL);
1840        static_variables = func->static_variables;
1841        func->static_variables = NULL;
1842        zend_hash_str_del(EG(function_table), LAMBDA_TEMP_FUNCNAME, sizeof(LAMBDA_TEMP_FUNCNAME)-1);
1843        func->static_variables = static_variables;
1844        RETURN_STR(function_name);
1845    } else {
1846        zend_hash_str_del(EG(function_table), LAMBDA_TEMP_FUNCNAME, sizeof(LAMBDA_TEMP_FUNCNAME)-1);
1847        RETURN_FALSE;
1848    }
1849}
1850/* }}} */
1851
1852#if ZEND_DEBUG
1853ZEND_FUNCTION(zend_test_func)
1854{
1855    zval *arg1, *arg2;
1856
1857    zend_get_parameters(ZEND_NUM_ARGS(), 2, &arg1, &arg2);
1858}
1859
1860
1861#ifdef ZTS
1862ZEND_FUNCTION(zend_thread_id)
1863{
1864    RETURN_LONG((zend_long)tsrm_thread_id());
1865}
1866#endif
1867#endif
1868
1869/* {{{ proto string get_resource_type(resource res)
1870   Get the resource type name for a given resource */
1871ZEND_FUNCTION(get_resource_type)
1872{
1873    const char *resource_type;
1874    zval *z_resource_type;
1875
1876    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &z_resource_type) == FAILURE) {
1877        return;
1878    }
1879
1880    resource_type = zend_rsrc_list_get_rsrc_type(Z_RES_P(z_resource_type) TSRMLS_CC);
1881    if (resource_type) {
1882        RETURN_STRING(resource_type);
1883    } else {
1884        RETURN_STRING("Unknown");
1885    }
1886}
1887/* }}} */
1888
1889/* {{{ proto array get_resources([string resouce_type])
1890   Get an array with all active resources */
1891ZEND_FUNCTION(get_resources)
1892{
1893    zend_string *type = NULL;
1894    zend_string *key;
1895    zend_ulong index;
1896    zval *val;
1897
1898    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|S", &type) == FAILURE) {
1899        return;
1900    }
1901
1902    if (!type) {
1903        array_init(return_value);
1904        ZEND_HASH_FOREACH_KEY_VAL(&EG(regular_list), index, key, val) {
1905            if (!key) {
1906                Z_ADDREF_P(val);
1907                zend_hash_index_add_new(Z_ARRVAL_P(return_value), index, val);
1908            }
1909        } ZEND_HASH_FOREACH_END();
1910    } else if (zend_string_equals_literal(type, "Unknown")) {
1911        array_init(return_value);
1912        ZEND_HASH_FOREACH_KEY_VAL(&EG(regular_list), index, key, val) {
1913            if (!key && Z_RES_TYPE_P(val) <= 0) {
1914                Z_ADDREF_P(val);
1915                zend_hash_index_add_new(Z_ARRVAL_P(return_value), index, val);
1916            }
1917        } ZEND_HASH_FOREACH_END();
1918    } else {
1919        int id = zend_fetch_list_dtor_id(type->val);
1920
1921        if (id <= 0) {
1922            zend_error(E_WARNING, "get_resources():  Unknown resource type '%s'", type->val);
1923            RETURN_FALSE;
1924        }
1925
1926        array_init(return_value);
1927        ZEND_HASH_FOREACH_KEY_VAL(&EG(regular_list), index, key, val) {
1928            if (!key && Z_RES_TYPE_P(val) == id) {
1929                Z_ADDREF_P(val);
1930                zend_hash_index_add_new(Z_ARRVAL_P(return_value), index, val);
1931            }
1932        } ZEND_HASH_FOREACH_END();
1933    }
1934}
1935/* }}} */
1936
1937static int add_extension_info(zval *item, void *arg TSRMLS_DC) /* {{{ */
1938{
1939    zval *name_array = (zval *)arg;
1940    zend_module_entry *module = (zend_module_entry*)Z_PTR_P(item);
1941    add_next_index_string(name_array, module->name);
1942    return 0;
1943}
1944/* }}} */
1945
1946static int add_zendext_info(zend_extension *ext, void *arg TSRMLS_DC) /* {{{ */
1947{
1948    zval *name_array = (zval *)arg;
1949    add_next_index_string(name_array, ext->name);
1950    return 0;
1951}
1952/* }}} */
1953
1954static int add_constant_info(zval *item, void *arg TSRMLS_DC) /* {{{ */
1955{
1956    zval *name_array = (zval *)arg;
1957    zend_constant *constant = (zend_constant*)Z_PTR_P(item);
1958    zval const_val;
1959
1960    if (!constant->name) {
1961        /* skip special constants */
1962        return 0;
1963    }
1964
1965    ZVAL_DUP(&const_val, &constant->value);
1966    zend_hash_add_new(Z_ARRVAL_P(name_array), constant->name, &const_val);
1967    return 0;
1968}
1969/* }}} */
1970
1971/* {{{ proto array get_loaded_extensions([bool zend_extensions]) U
1972   Return an array containing names of loaded extensions */
1973ZEND_FUNCTION(get_loaded_extensions)
1974{
1975    zend_bool zendext = 0;
1976
1977    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &zendext) == FAILURE) {
1978        return;
1979    }
1980
1981    array_init(return_value);
1982
1983    if (zendext) {
1984        zend_llist_apply_with_argument(&zend_extensions, (llist_apply_with_arg_func_t)add_zendext_info, return_value TSRMLS_CC);
1985    } else {
1986        zend_hash_apply_with_argument(&module_registry, add_extension_info, return_value TSRMLS_CC);
1987    }
1988}
1989/* }}} */
1990
1991/* {{{ proto array get_defined_constants([bool categorize])
1992   Return an array containing the names and values of all defined constants */
1993ZEND_FUNCTION(get_defined_constants)
1994{
1995    zend_bool categorize = 0;
1996
1997    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &categorize) == FAILURE) {
1998        return;
1999    }
2000
2001    array_init(return_value);
2002
2003    if (categorize) {
2004        zend_constant *val;
2005        int module_number;
2006        zval *modules, const_val;
2007        char **module_names;
2008        zend_module_entry *module;
2009        int i = 1;
2010
2011        modules = ecalloc(zend_hash_num_elements(&module_registry) + 2, sizeof(zval));
2012        module_names = emalloc((zend_hash_num_elements(&module_registry) + 2) * sizeof(char *));
2013
2014        module_names[0] = "internal";
2015        ZEND_HASH_FOREACH_PTR(&module_registry, module) {
2016            module_names[module->module_number] = (char *)module->name;
2017            i++;
2018        } ZEND_HASH_FOREACH_END();
2019        module_names[i] = "user";
2020
2021        ZEND_HASH_FOREACH_PTR(EG(zend_constants), val) {
2022            if (!val->name) {
2023                /* skip special constants */
2024                continue;
2025            }
2026
2027            if (val->module_number == PHP_USER_CONSTANT) {
2028                module_number = i;
2029            } else if (val->module_number > i || val->module_number < 0) {
2030                /* should not happen */
2031                continue;
2032            } else {
2033                module_number = val->module_number;
2034            }
2035
2036            if (Z_TYPE(modules[module_number]) == IS_UNDEF) {
2037                array_init(&modules[module_number]);
2038                add_assoc_zval(return_value, module_names[module_number], &modules[module_number]);
2039            }
2040
2041            ZVAL_DUP(&const_val, &val->value);
2042            zend_hash_add_new(Z_ARRVAL(modules[module_number]), val->name, &const_val);
2043        } ZEND_HASH_FOREACH_END();
2044
2045        efree(module_names);
2046        efree(modules);
2047    } else {
2048        zend_hash_apply_with_argument(EG(zend_constants), add_constant_info, return_value TSRMLS_CC);
2049    }
2050}
2051/* }}} */
2052
2053static void debug_backtrace_get_args(zend_execute_data *call, zval *arg_array TSRMLS_DC) /* {{{ */
2054{
2055    uint32_t num_args = call->num_args;
2056
2057    array_init_size(arg_array, num_args);
2058    if (num_args) {
2059        uint32_t i = 0;
2060        zval *p = ZEND_CALL_ARG(call, 1);
2061
2062        if (call->func->type == ZEND_USER_FUNCTION) {
2063            uint32_t first_extra_arg = call->func->op_array.num_args;
2064
2065            if (call->func->op_array.fn_flags & ZEND_ACC_VARIADIC) {
2066                first_extra_arg--;
2067            }
2068            if (call->num_args > first_extra_arg) {
2069                while (i < first_extra_arg) {
2070                    if (Z_REFCOUNTED_P(p)) Z_ADDREF_P(p);
2071                    zend_hash_next_index_insert_new(Z_ARRVAL_P(arg_array), p);
2072                    p++;
2073                    i++;
2074                }
2075                p = EX_VAR_NUM_2(call, call->func->op_array.last_var + call->func->op_array.T);
2076            }
2077        }
2078
2079        while (i < num_args) {
2080            if (Z_REFCOUNTED_P(p)) Z_ADDREF_P(p);
2081            zend_hash_next_index_insert_new(Z_ARRVAL_P(arg_array), p);
2082            p++;
2083            i++;
2084        }
2085    }
2086}
2087/* }}} */
2088
2089void debug_print_backtrace_args(zval *arg_array TSRMLS_DC) /* {{{ */
2090{
2091    zval *tmp;
2092    int i = 0;
2093
2094    ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(arg_array), tmp) {
2095        if (i++) {
2096            ZEND_PUTS(", ");
2097        }
2098        zend_print_flat_zval_r(tmp TSRMLS_CC);
2099    } ZEND_HASH_FOREACH_END();
2100}
2101/* }}} */
2102
2103/* {{{ proto void debug_print_backtrace([int options[, int limit]]) */
2104ZEND_FUNCTION(debug_print_backtrace)
2105{
2106    zend_execute_data *call, *ptr, *skip;
2107    zend_object *object;
2108    int lineno, frameno = 0;
2109    zend_function *func;
2110    const char *function_name;
2111    const char *filename;
2112    zend_string *class_name = NULL;
2113    char *call_type;
2114    const char *include_filename = NULL;
2115    zval arg_array;
2116    int indent = 0;
2117    zend_long options = 0;
2118    zend_long limit = 0;
2119
2120    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ll", &options, &limit) == FAILURE) {
2121        return;
2122    }
2123
2124    ZVAL_UNDEF(&arg_array);
2125    ptr = EX(prev_execute_data);
2126
2127    /* skip debug_backtrace() */
2128    call = ptr;
2129    ptr = ptr->prev_execute_data;
2130
2131    while (ptr && (limit == 0 || frameno < limit)) {
2132        frameno++;
2133        class_name = NULL;
2134        call_type = NULL;
2135        ZVAL_UNDEF(&arg_array);
2136
2137        skip = ptr;
2138        /* skip internal handler */
2139        if ((!skip->func || !ZEND_USER_CODE(skip->func->common.type)) &&
2140            skip->prev_execute_data &&
2141            skip->prev_execute_data->func &&
2142            ZEND_USER_CODE(skip->prev_execute_data->func->common.type) &&
2143            skip->prev_execute_data->opline->opcode != ZEND_DO_FCALL &&
2144            skip->prev_execute_data->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
2145            skip = skip->prev_execute_data;
2146        }
2147
2148        if (skip->func && ZEND_USER_CODE(skip->func->common.type)) {
2149            filename = skip->func->op_array.filename->val;
2150            if (skip->opline->opcode == ZEND_HANDLE_EXCEPTION) {
2151                if (EG(opline_before_exception)) {
2152                    lineno = EG(opline_before_exception)->lineno;
2153                } else {
2154                    lineno = skip->func->op_array.line_end;
2155                }
2156            } else {
2157                lineno = skip->opline->lineno;
2158            }
2159        } else {
2160            filename = NULL;
2161            lineno = 0;
2162        }
2163
2164        /* $this may be passed into regular internal functions */
2165        object = Z_OBJ(call->This);
2166        if (object &&
2167            call &&
2168            call->func->type == ZEND_INTERNAL_FUNCTION &&
2169            !call->func->common.scope) {
2170            object = NULL;
2171        }
2172
2173        if (call->func) {
2174            func = call->func;
2175            function_name = (func->common.scope &&
2176                             func->common.scope->trait_aliases) ?
2177                zend_resolve_method_name(
2178                    (object ? object->ce : func->common.scope), func)->val :
2179                (func->common.function_name ?
2180                    func->common.function_name->val : NULL);
2181        } else {
2182            func = NULL;
2183            function_name = NULL;
2184        }
2185
2186        if (function_name) {
2187            if (object) {
2188                if (func->common.scope) {
2189                    class_name = func->common.scope->name;
2190                } else {
2191                    class_name = object->ce->name;
2192                }
2193
2194                call_type = "->";
2195            } else if (func->common.scope) {
2196                class_name = func->common.scope->name;
2197                call_type = "::";
2198            } else {
2199                class_name = NULL;
2200                call_type = NULL;
2201            }
2202            if (func->type != ZEND_EVAL_CODE) {
2203                if ((options & DEBUG_BACKTRACE_IGNORE_ARGS) == 0) {
2204                    debug_backtrace_get_args(call, &arg_array TSRMLS_CC);
2205                }
2206            }
2207        } else {
2208            /* i know this is kinda ugly, but i'm trying to avoid extra cycles in the main execution loop */
2209            zend_bool build_filename_arg = 1;
2210
2211            if (!ptr->func || !ZEND_USER_CODE(ptr->func->common.type) || ptr->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
2212                /* can happen when calling eval from a custom sapi */
2213                function_name = "unknown";
2214                build_filename_arg = 0;
2215            } else
2216            switch (ptr->opline->extended_value) {
2217                case ZEND_EVAL:
2218                    function_name = "eval";
2219                    build_filename_arg = 0;
2220                    break;
2221                case ZEND_INCLUDE:
2222                    function_name = "include";
2223                    break;
2224                case ZEND_REQUIRE:
2225                    function_name = "require";
2226                    break;
2227                case ZEND_INCLUDE_ONCE:
2228                    function_name = "include_once";
2229                    break;
2230                case ZEND_REQUIRE_ONCE:
2231                    function_name = "require_once";
2232                    break;
2233                default:
2234                    /* this can actually happen if you use debug_backtrace() in your error_handler and
2235                     * you're in the top-scope */
2236                    function_name = "unknown";
2237                    build_filename_arg = 0;
2238                    break;
2239            }
2240
2241            if (build_filename_arg && include_filename) {
2242                array_init(&arg_array);
2243                add_next_index_string(&arg_array, (char*)include_filename);
2244            }
2245            call_type = NULL;
2246        }
2247        zend_printf("#%-2d ", indent);
2248        if (class_name) {
2249            ZEND_PUTS(class_name->val);
2250            ZEND_PUTS(call_type);
2251        }
2252        zend_printf("%s(", function_name);
2253        if (Z_TYPE(arg_array) != IS_UNDEF) {
2254            debug_print_backtrace_args(&arg_array TSRMLS_CC);
2255            zval_ptr_dtor(&arg_array);
2256        }
2257        if (filename) {
2258            zend_printf(") called at [%s:%d]\n", filename, lineno);
2259        } else {
2260            zend_execute_data *prev_call = skip;
2261            zend_execute_data *prev = skip->prev_execute_data;
2262
2263            while (prev) {
2264                if (prev_call &&
2265                    prev_call->func &&
2266                    !ZEND_USER_CODE(prev_call->func->common.type)) {
2267                    prev = NULL;
2268                    break;
2269                }
2270                if (prev->func && ZEND_USER_CODE(prev->func->common.type)) {
2271                    zend_printf(") called at [%s:%d]\n", prev->func->op_array.filename->val, prev->opline->lineno);
2272                    break;
2273                }
2274                prev_call = prev;
2275                prev = prev->prev_execute_data;
2276            }
2277            if (!prev) {
2278                ZEND_PUTS(")\n");
2279            }
2280        }
2281        include_filename = filename;
2282        call = skip;
2283        ptr = skip->prev_execute_data;
2284        ++indent;
2285    }
2286}
2287
2288/* }}} */
2289
2290ZEND_API void zend_fetch_debug_backtrace(zval *return_value, int skip_last, int options, int limit TSRMLS_DC) /* {{{ */
2291{
2292    zend_execute_data *call, *ptr, *skip;
2293    zend_object *object;
2294    int lineno, frameno = 0;
2295    zend_function *func;
2296    const char *function_name;
2297    const char *filename;
2298    const char *include_filename = NULL;
2299    zval stack_frame;
2300
2301    call = NULL;
2302    ptr = EG(current_execute_data);
2303    if (!ptr->func || !ZEND_USER_CODE(ptr->func->common.type)) {
2304        call = ptr;
2305        ptr = ptr->prev_execute_data;
2306    }
2307
2308    if (ptr) {
2309        if (skip_last) {
2310            /* skip debug_backtrace() */
2311            call = ptr;
2312            ptr = ptr->prev_execute_data;
2313        } else {
2314            /* skip "new Exception()" */
2315            if (ptr->func && ZEND_USER_CODE(ptr->func->common.type) && (ptr->opline->opcode == ZEND_NEW)) {
2316                call = ptr;
2317                ptr = ptr->prev_execute_data;
2318            }
2319        }
2320    }
2321    if (!call) {
2322        call = ptr;
2323        ptr = ptr->prev_execute_data;
2324    }
2325
2326    array_init(return_value);
2327
2328    while (ptr && (limit == 0 || frameno < limit)) {
2329        frameno++;
2330        array_init(&stack_frame);
2331
2332        skip = ptr;
2333        /* skip internal handler */
2334        if ((!skip->func || !ZEND_USER_CODE(skip->func->common.type)) &&
2335            skip->prev_execute_data &&
2336            skip->prev_execute_data->func &&
2337            ZEND_USER_CODE(skip->prev_execute_data->func->common.type) &&
2338            skip->prev_execute_data->opline->opcode != ZEND_DO_FCALL &&
2339            skip->prev_execute_data->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
2340            skip = skip->prev_execute_data;
2341        }
2342
2343        if (skip->func && ZEND_USER_CODE(skip->func->common.type)) {
2344            filename = skip->func->op_array.filename->val;
2345            if (skip->opline->opcode == ZEND_HANDLE_EXCEPTION) {
2346                if (EG(opline_before_exception)) {
2347                    lineno = EG(opline_before_exception)->lineno;
2348                } else {
2349                    lineno = skip->func->op_array.line_end;
2350                }
2351            } else {
2352                lineno = skip->opline->lineno;
2353            }
2354            add_assoc_string_ex(&stack_frame, "file", sizeof("file")-1, (char*)filename);
2355            add_assoc_long_ex(&stack_frame, "line", sizeof("line")-1, lineno);
2356
2357            /* try to fetch args only if an FCALL was just made - elsewise we're in the middle of a function
2358             * and debug_baktrace() might have been called by the error_handler. in this case we don't
2359             * want to pop anything of the argument-stack */
2360        } else {
2361            zend_execute_data *prev_call = skip;
2362            zend_execute_data *prev = skip->prev_execute_data;
2363
2364            while (prev) {
2365                if (prev_call &&
2366                    prev_call->func &&
2367                    !ZEND_USER_CODE(prev_call->func->common.type) &&
2368                    !(prev_call->func->common.type == ZEND_INTERNAL_FUNCTION &&
2369                        (prev_call->func->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER))) {
2370                    break;
2371                }
2372                if (prev->func && ZEND_USER_CODE(prev->func->common.type)) {
2373                    add_assoc_str_ex(&stack_frame, "file", sizeof("file")-1, zend_string_copy(prev->func->op_array.filename));
2374                    add_assoc_long_ex(&stack_frame, "line", sizeof("line")-1, prev->opline->lineno);
2375                    break;
2376                }
2377                prev_call = prev;
2378                prev = prev->prev_execute_data;
2379            }
2380            filename = NULL;
2381        }
2382
2383        /* $this may be passed into regular internal functions */
2384        object = call ? Z_OBJ(call->This) : NULL;
2385        if (object &&
2386            call->func &&
2387            call->func->type == ZEND_INTERNAL_FUNCTION &&
2388            !call->func->common.scope) {
2389            object = NULL;
2390        }
2391
2392        if (call && call->func) {
2393            func = call->func;
2394            function_name = (func->common.scope &&
2395                             func->common.scope->trait_aliases) ?
2396                zend_resolve_method_name(
2397                    (object ? object->ce : func->common.scope), func)->val :
2398                (func->common.function_name ?
2399                    func->common.function_name->val : NULL);
2400        } else {
2401            func = NULL;
2402            function_name = NULL;
2403        }
2404
2405        if (function_name) {
2406            add_assoc_string_ex(&stack_frame, "function", sizeof("function")-1, (char*)function_name);
2407
2408            if (object) {
2409                if (func->common.scope) {
2410                    add_assoc_str_ex(&stack_frame, "class", sizeof("class")-1, zend_string_copy(func->common.scope->name));
2411                } else {
2412                    add_assoc_str_ex(&stack_frame, "class", sizeof("class")-1, zend_string_copy(object->ce->name));
2413
2414                }
2415                if ((options & DEBUG_BACKTRACE_PROVIDE_OBJECT) != 0) {
2416                    zval zv;
2417                    ZVAL_OBJ(&zv, object);
2418                    add_assoc_zval_ex(&stack_frame, "object", sizeof("object")-1, &zv);
2419                    Z_ADDREF(zv);
2420                }
2421
2422                add_assoc_string_ex(&stack_frame, "type", sizeof("type")-1, "->");
2423            } else if (func->common.scope) {
2424                add_assoc_str_ex(&stack_frame, "class", sizeof("class")-1, zend_string_copy(func->common.scope->name));
2425                add_assoc_string_ex(&stack_frame, "type", sizeof("type")-1, "::");
2426            }
2427
2428            if ((options & DEBUG_BACKTRACE_IGNORE_ARGS) == 0 &&
2429                func->type != ZEND_EVAL_CODE) {
2430                zval args;
2431
2432                debug_backtrace_get_args(call, &args TSRMLS_CC);
2433                add_assoc_zval_ex(&stack_frame, "args", sizeof("args")-1, &args);
2434            }
2435        } else {
2436            /* i know this is kinda ugly, but i'm trying to avoid extra cycles in the main execution loop */
2437            zend_bool build_filename_arg = 1;
2438
2439            if (!ptr->func || !ZEND_USER_CODE(ptr->func->common.type) || ptr->opline->opcode != ZEND_INCLUDE_OR_EVAL) {
2440                /* can happen when calling eval from a custom sapi */
2441                function_name = "unknown";
2442                build_filename_arg = 0;
2443            } else
2444            switch (ptr->opline->extended_value) {
2445                case ZEND_EVAL:
2446                    function_name = "eval";
2447                    build_filename_arg = 0;
2448                    break;
2449                case ZEND_INCLUDE:
2450                    function_name = "include";
2451                    break;
2452                case ZEND_REQUIRE:
2453                    function_name = "require";
2454                    break;
2455                case ZEND_INCLUDE_ONCE:
2456                    function_name = "include_once";
2457                    break;
2458                case ZEND_REQUIRE_ONCE:
2459                    function_name = "require_once";
2460                    break;
2461                default:
2462                    /* this can actually happen if you use debug_backtrace() in your error_handler and
2463                     * you're in the top-scope */
2464                    function_name = "unknown";
2465                    build_filename_arg = 0;
2466                    break;
2467            }
2468
2469            if (build_filename_arg && include_filename) {
2470                zval arg_array;
2471
2472                array_init(&arg_array);
2473
2474                /* include_filename always points to the last filename of the last last called-function.
2475                   if we have called include in the frame above - this is the file we have included.
2476                 */
2477
2478                add_next_index_string(&arg_array, (char*)include_filename);
2479                add_assoc_zval_ex(&stack_frame, "args", sizeof("args")-1, &arg_array);
2480            }
2481
2482            add_assoc_string_ex(&stack_frame, "function", sizeof("function")-1, (char*)function_name);
2483        }
2484
2485        zend_hash_next_index_insert_new(Z_ARRVAL_P(return_value), &stack_frame);
2486
2487        include_filename = filename;
2488
2489        call = skip;
2490        ptr = skip->prev_execute_data;
2491    }
2492}
2493/* }}} */
2494
2495/* {{{ proto array debug_backtrace([int options[, int limit]])
2496   Return backtrace as array */
2497ZEND_FUNCTION(debug_backtrace)
2498{
2499    zend_long options = DEBUG_BACKTRACE_PROVIDE_OBJECT;
2500    zend_long limit = 0;
2501
2502    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ll", &options, &limit) == FAILURE) {
2503        return;
2504    }
2505
2506    zend_fetch_debug_backtrace(return_value, 1, options, limit TSRMLS_CC);
2507}
2508/* }}} */
2509
2510/* {{{ proto bool extension_loaded(string extension_name)
2511   Returns true if the named extension is loaded */
2512ZEND_FUNCTION(extension_loaded)
2513{
2514    char *extension_name;
2515    size_t extension_name_len;
2516    zend_string *lcname;
2517
2518    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &extension_name, &extension_name_len) == FAILURE) {
2519        return;
2520    }
2521
2522    lcname = zend_string_alloc(extension_name_len, 0);
2523    zend_str_tolower_copy(lcname->val, extension_name, extension_name_len);
2524    if (zend_hash_exists(&module_registry, lcname)) {
2525        RETVAL_TRUE;
2526    } else {
2527        RETVAL_FALSE;
2528    }
2529    zend_string_free(lcname);
2530}
2531/* }}} */
2532
2533/* {{{ proto array get_extension_funcs(string extension_name)
2534   Returns an array with the names of functions belonging to the named extension */
2535ZEND_FUNCTION(get_extension_funcs)
2536{
2537    char *extension_name;
2538    zend_string *lcname;
2539    size_t extension_name_len;
2540    int array;
2541    zend_module_entry *module;
2542    zend_function *zif;
2543
2544    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &extension_name, &extension_name_len) == FAILURE) {
2545        return;
2546    }
2547    if (strncasecmp(extension_name, "zend", sizeof("zend"))) {
2548        lcname = zend_string_alloc(extension_name_len, 0);
2549        zend_str_tolower_copy(lcname->val, extension_name, extension_name_len);
2550    } else {
2551        lcname = zend_string_init("core", sizeof("core")-1, 0);
2552    }
2553    module = zend_hash_find_ptr(&module_registry, lcname);
2554    zend_string_free(lcname);
2555    if (!module) {
2556        RETURN_FALSE;
2557    }
2558
2559    if (module->functions) {
2560        /* avoid BC break, if functions list is empty, will return an empty array */
2561        array_init(return_value);
2562        array = 1;
2563    } else {
2564        array = 0;
2565    }
2566
2567    ZEND_HASH_FOREACH_PTR(CG(function_table), zif) {
2568        if (zif->common.type == ZEND_INTERNAL_FUNCTION
2569            && zif->internal_function.module == module) {
2570            if (!array) {
2571                array_init(return_value);
2572                array = 1;
2573            }
2574            add_next_index_str(return_value, zend_string_copy(zif->common.function_name));
2575        }
2576    } ZEND_HASH_FOREACH_END();
2577
2578    if (!array) {
2579        RETURN_FALSE;
2580    }
2581}
2582/* }}} */
2583
2584/*
2585 * Local variables:
2586 * tab-width: 4
2587 * c-basic-offset: 4
2588 * indent-tabs-mode: t
2589 * End:
2590 */
2591