root/spl/spl_array.c

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DEFINITIONS

This source file includes following definitions.
  1. spl_array_get_hash_table
  2. spl_array_update_pos
  3. spl_array_set_pos
  4. spl_hash_verify_pos_ex
  5. spl_hash_verify_pos
  6. spl_array_object_free_storage
  7. spl_array_object_new_ex
  8. spl_array_object_new
  9. spl_array_object_clone
  10. spl_array_get_dimension_ptr_ptr
  11. spl_array_read_dimension_ex
  12. spl_array_read_dimension
  13. spl_array_write_dimension_ex
  14. spl_array_write_dimension
  15. spl_array_unset_dimension_ex
  16. spl_array_unset_dimension
  17. spl_array_has_dimension_ex
  18. spl_array_has_dimension
  19. spl_array_object_verify_pos_ex
  20. spl_array_object_verify_pos
  21. SPL_METHOD
  22. SPL_METHOD
  23. SPL_METHOD
  24. spl_array_iterator_append
  25. SPL_METHOD
  26. SPL_METHOD
  27. SPL_METHOD
  28. spl_array_get_properties
  29. spl_array_get_debug_info
  30. spl_array_read_property
  31. spl_array_write_property
  32. spl_array_get_property_ptr_ptr
  33. spl_array_has_property
  34. spl_array_unset_property
  35. spl_array_compare_objects
  36. spl_array_skip_protected
  37. spl_array_next_no_verify
  38. spl_array_next_ex
  39. spl_array_next
  40. spl_array_it_dtor
  41. spl_array_it_valid
  42. spl_array_it_get_current_data
  43. spl_array_it_get_current_key
  44. spl_array_it_move_forward
  45. spl_array_rewind_ex
  46. spl_array_rewind
  47. spl_array_it_rewind
  48. spl_array_set_array
  49. spl_array_get_iterator
  50. SPL_METHOD
  51. SPL_METHOD
  52. SPL_METHOD
  53. SPL_METHOD
  54. SPL_METHOD
  55. SPL_METHOD
  56. SPL_METHOD
  57. SPL_METHOD
  58. SPL_METHOD
  59. spl_array_object_count_elements_helper
  60. spl_array_object_count_elements
  61. SPL_METHOD
  62. spl_array_method
  63. SPL_ARRAY_METHOD
  64. SPL_METHOD
  65. spl_array_iterator_key
  66. SPL_METHOD
  67. SPL_METHOD
  68. SPL_METHOD
  69. SPL_METHOD
  70. SPL_METHOD
  71. SPL_METHOD
  72. PHP_MINIT_FUNCTION

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2013 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Marcus Boerger <helly@php.net>                              |
   +----------------------------------------------------------------------+
 */

/* $Id$ */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_var.h"
#include "ext/standard/php_smart_str.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"

#include "php_spl.h"
#include "spl_functions.h"
#include "spl_engine.h"
#include "spl_iterators.h"
#include "spl_array.h"
#include "spl_exceptions.h"

zend_object_handlers spl_handler_ArrayObject;
PHPAPI zend_class_entry  *spl_ce_ArrayObject;

zend_object_handlers spl_handler_ArrayIterator;
PHPAPI zend_class_entry  *spl_ce_ArrayIterator;
PHPAPI zend_class_entry  *spl_ce_RecursiveArrayIterator;

#define SPL_ARRAY_STD_PROP_LIST      0x00000001
#define SPL_ARRAY_ARRAY_AS_PROPS     0x00000002
#define SPL_ARRAY_CHILD_ARRAYS_ONLY  0x00000004
#define SPL_ARRAY_OVERLOADED_REWIND  0x00010000
#define SPL_ARRAY_OVERLOADED_VALID   0x00020000
#define SPL_ARRAY_OVERLOADED_KEY     0x00040000
#define SPL_ARRAY_OVERLOADED_CURRENT 0x00080000
#define SPL_ARRAY_OVERLOADED_NEXT    0x00100000
#define SPL_ARRAY_IS_REF             0x01000000
#define SPL_ARRAY_IS_SELF            0x02000000
#define SPL_ARRAY_USE_OTHER          0x04000000
#define SPL_ARRAY_INT_MASK           0xFFFF0000
#define SPL_ARRAY_CLONE_MASK         0x0300FFFF

#define SPL_ARRAY_METHOD_NO_ARG                         0
#define SPL_ARRAY_METHOD_USE_ARG                1
#define SPL_ARRAY_METHOD_MAY_USER_ARG           2

typedef struct _spl_array_object {
        zend_object       std;
        zval              *array;
        zval              *retval;
        HashPosition      pos;
        ulong             pos_h;
        int               ar_flags;
        int               is_self;
        zend_function     *fptr_offset_get;
        zend_function     *fptr_offset_set;
        zend_function     *fptr_offset_has;
        zend_function     *fptr_offset_del;
        zend_function     *fptr_count;
        zend_class_entry* ce_get_iterator;
        HashTable              *debug_info;
        unsigned char              nApplyCount;
} spl_array_object;

static inline HashTable *spl_array_get_hash_table(spl_array_object* intern, int check_std_props TSRMLS_DC) { /* {{{ */
        if ((intern->ar_flags & SPL_ARRAY_IS_SELF) != 0) {
                if (!intern->std.properties) {
                        rebuild_object_properties(&intern->std);
                }
                return intern->std.properties;
        } else if ((intern->ar_flags & SPL_ARRAY_USE_OTHER) && (check_std_props == 0 || (intern->ar_flags & SPL_ARRAY_STD_PROP_LIST) == 0) && Z_TYPE_P(intern->array) == IS_OBJECT) {
                spl_array_object *other  = (spl_array_object*)zend_object_store_get_object(intern->array TSRMLS_CC);
                return spl_array_get_hash_table(other, check_std_props TSRMLS_CC);
        } else if ((intern->ar_flags & ((check_std_props ? SPL_ARRAY_STD_PROP_LIST : 0) | SPL_ARRAY_IS_SELF)) != 0) {
                if (!intern->std.properties) {
                        rebuild_object_properties(&intern->std);
                }
                return intern->std.properties;
        } else {
                return HASH_OF(intern->array);
        }
} /* }}} */

static void spl_array_rewind(spl_array_object *intern TSRMLS_DC);

static void spl_array_update_pos(spl_array_object* intern) /* {{{ */
{
        Bucket *pos = intern->pos;
        if (pos != NULL) {
                intern->pos_h = pos->h;
        }
} /* }}} */

static void spl_array_set_pos(spl_array_object* intern, HashPosition pos) /* {{{ */
{
        intern->pos = pos;
        spl_array_update_pos(intern);
} /* }}} */

SPL_API int spl_hash_verify_pos_ex(spl_array_object * intern, HashTable * ht TSRMLS_DC) /* {{{ */
{
        Bucket *p;

/*      IS_CONSISTENT(ht);*/

/*      HASH_PROTECT_RECURSION(ht);*/
        p = ht->arBuckets[intern->pos_h & ht->nTableMask];
        while (p != NULL) {
                if (p == intern->pos) {
                        return SUCCESS;
                }
                p = p->pNext;
        }
/*      HASH_UNPROTECT_RECURSION(ht); */
        spl_array_rewind(intern TSRMLS_CC);
        return FAILURE;

} /* }}} */

SPL_API int spl_hash_verify_pos(spl_array_object * intern TSRMLS_DC) /* {{{ */
{
        HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        return spl_hash_verify_pos_ex(intern, ht TSRMLS_CC);
}
/* }}} */

/* {{{ spl_array_object_free_storage */
static void spl_array_object_free_storage(void *object TSRMLS_DC)
{
        spl_array_object *intern = (spl_array_object *)object;

        zend_object_std_dtor(&intern->std TSRMLS_CC);

        zval_ptr_dtor(&intern->array);
        zval_ptr_dtor(&intern->retval);

        if (intern->debug_info != NULL) {
                zend_hash_destroy(intern->debug_info);
                efree(intern->debug_info);
        }

        efree(object);
}
/* }}} */

zend_object_iterator *spl_array_get_iterator(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC);

/* {{{ spl_array_object_new_ex */
static zend_object_value spl_array_object_new_ex(zend_class_entry *class_type, spl_array_object **obj, zval *orig, int clone_orig TSRMLS_DC)
{
        zend_object_value retval;
        spl_array_object *intern;
        zval *tmp;
        zend_class_entry * parent = class_type;
        int inherited = 0;

        intern = emalloc(sizeof(spl_array_object));
        memset(intern, 0, sizeof(spl_array_object));
        *obj = intern;
        ALLOC_INIT_ZVAL(intern->retval);

        zend_object_std_init(&intern->std, class_type TSRMLS_CC);
        object_properties_init(&intern->std, class_type);

        intern->ar_flags = 0;
        intern->debug_info       = NULL;
        intern->ce_get_iterator = spl_ce_ArrayIterator;
        if (orig) {
                spl_array_object *other = (spl_array_object*)zend_object_store_get_object(orig TSRMLS_CC);

                intern->ar_flags &= ~ SPL_ARRAY_CLONE_MASK;
                intern->ar_flags |= (other->ar_flags & SPL_ARRAY_CLONE_MASK);
                intern->ce_get_iterator = other->ce_get_iterator;
                if (clone_orig) {
                        intern->array = other->array;
                        if (Z_OBJ_HT_P(orig) == &spl_handler_ArrayObject) {
                                MAKE_STD_ZVAL(intern->array);
                                array_init(intern->array);
                                zend_hash_copy(HASH_OF(intern->array), HASH_OF(other->array), (copy_ctor_func_t) zval_add_ref, &tmp, sizeof(zval*));
                        }
                        if (Z_OBJ_HT_P(orig) == &spl_handler_ArrayIterator) {
                                Z_ADDREF_P(other->array);
                        }
                } else {
                        intern->array = orig;
                        Z_ADDREF_P(intern->array);
                        intern->ar_flags |= SPL_ARRAY_IS_REF | SPL_ARRAY_USE_OTHER;
                }
        } else {
                MAKE_STD_ZVAL(intern->array);
                array_init(intern->array);
                intern->ar_flags &= ~SPL_ARRAY_IS_REF;
        }

        retval.handle = zend_objects_store_put(intern, (zend_objects_store_dtor_t)zend_objects_destroy_object, (zend_objects_free_object_storage_t) spl_array_object_free_storage, NULL TSRMLS_CC);
        while (parent) {
                if (parent == spl_ce_ArrayIterator || parent == spl_ce_RecursiveArrayIterator) {
                        retval.handlers = &spl_handler_ArrayIterator;
                        class_type->get_iterator = spl_array_get_iterator;
                        break;
                } else if (parent == spl_ce_ArrayObject) {
                        retval.handlers = &spl_handler_ArrayObject;
                        break;
                }
                parent = parent->parent;
                inherited = 1;
        }
        if (!parent) { /* this must never happen */
                php_error_docref(NULL TSRMLS_CC, E_COMPILE_ERROR, "Internal compiler error, Class is not child of ArrayObject or ArrayIterator");
        }
        if (inherited) {
                zend_hash_find(&class_type->function_table, "offsetget",    sizeof("offsetget"),    (void **) &intern->fptr_offset_get);
                if (intern->fptr_offset_get->common.scope == parent) {
                        intern->fptr_offset_get = NULL;
                }
                zend_hash_find(&class_type->function_table, "offsetset",    sizeof("offsetset"),    (void **) &intern->fptr_offset_set);
                if (intern->fptr_offset_set->common.scope == parent) {
                        intern->fptr_offset_set = NULL;
                }
                zend_hash_find(&class_type->function_table, "offsetexists", sizeof("offsetexists"), (void **) &intern->fptr_offset_has);
                if (intern->fptr_offset_has->common.scope == parent) {
                        intern->fptr_offset_has = NULL;
                }
                zend_hash_find(&class_type->function_table, "offsetunset",  sizeof("offsetunset"),  (void **) &intern->fptr_offset_del);
                if (intern->fptr_offset_del->common.scope == parent) {
                        intern->fptr_offset_del = NULL;
                }
                zend_hash_find(&class_type->function_table, "count",        sizeof("count"),        (void **) &intern->fptr_count);
                if (intern->fptr_count->common.scope == parent) {
                        intern->fptr_count = NULL;
                }
        }
        /* Cache iterator functions if ArrayIterator or derived. Check current's */
        /* cache since only current is always required */
        if (retval.handlers == &spl_handler_ArrayIterator) {
                if (!class_type->iterator_funcs.zf_current) {
                        zend_hash_find(&class_type->function_table, "rewind",  sizeof("rewind"),  (void **) &class_type->iterator_funcs.zf_rewind);
                        zend_hash_find(&class_type->function_table, "valid",   sizeof("valid"),   (void **) &class_type->iterator_funcs.zf_valid);
                        zend_hash_find(&class_type->function_table, "key",     sizeof("key"),     (void **) &class_type->iterator_funcs.zf_key);
                        zend_hash_find(&class_type->function_table, "current", sizeof("current"), (void **) &class_type->iterator_funcs.zf_current);
                        zend_hash_find(&class_type->function_table, "next",    sizeof("next"),    (void **) &class_type->iterator_funcs.zf_next);
                }
                if (inherited) {
                        if (class_type->iterator_funcs.zf_rewind->common.scope  != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_REWIND;
                        if (class_type->iterator_funcs.zf_valid->common.scope   != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_VALID;
                        if (class_type->iterator_funcs.zf_key->common.scope     != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_KEY;
                        if (class_type->iterator_funcs.zf_current->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_CURRENT;
                        if (class_type->iterator_funcs.zf_next->common.scope    != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_NEXT;
                }
        }

        spl_array_rewind(intern TSRMLS_CC);
        return retval;
}
/* }}} */

/* {{{ spl_array_object_new */
static zend_object_value spl_array_object_new(zend_class_entry *class_type TSRMLS_DC)
{
        spl_array_object *tmp;
        return spl_array_object_new_ex(class_type, &tmp, NULL, 0 TSRMLS_CC);
}
/* }}} */

/* {{{ spl_array_object_clone */
static zend_object_value spl_array_object_clone(zval *zobject TSRMLS_DC)
{
        zend_object_value new_obj_val;
        zend_object *old_object;
        zend_object *new_object;
        zend_object_handle handle = Z_OBJ_HANDLE_P(zobject);
        spl_array_object *intern;

        old_object = zend_objects_get_address(zobject TSRMLS_CC);
        new_obj_val = spl_array_object_new_ex(old_object->ce, &intern, zobject, 1 TSRMLS_CC);
        new_object = &intern->std;

        zend_objects_clone_members(new_object, new_obj_val, old_object, handle TSRMLS_CC);

        return new_obj_val;
}
/* }}} */

static zval **spl_array_get_dimension_ptr_ptr(int check_inherited, zval *object, zval *offset, int type TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        zval **retval;
        long index;
        HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        if (!offset) {
                return &EG(uninitialized_zval_ptr);
        }
        
        if ((type == BP_VAR_W || type == BP_VAR_RW) && (ht->nApplyCount > 0)) {
                zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                return &EG(error_zval_ptr);;
        }

        switch(Z_TYPE_P(offset)) {
        case IS_NULL:
                Z_STRVAL_P(offset) = "";
                Z_STRLEN_P(offset) = 0;
        case IS_STRING:
                if (zend_symtable_find(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void **) &retval) == FAILURE) {
                        switch (type) {
                                case BP_VAR_R:
                                        zend_error(E_NOTICE, "Undefined index: %s", Z_STRVAL_P(offset));
                                case BP_VAR_UNSET:
                                case BP_VAR_IS:
                                        retval = &EG(uninitialized_zval_ptr);
                                        break;
                                case BP_VAR_RW:
                                        zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
                                case BP_VAR_W: {
                                    zval *value;
                                    ALLOC_INIT_ZVAL(value);
                                    zend_symtable_update(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void**)&value, sizeof(void*), (void **)&retval);
                                }
                        }
                }
                return retval;
        case IS_RESOURCE:
                zend_error(E_STRICT, "Resource ID#%ld used as offset, casting to integer (%ld)", Z_LVAL_P(offset), Z_LVAL_P(offset));
        case IS_DOUBLE:
        case IS_BOOL: 
        case IS_LONG: 
                if (offset->type == IS_DOUBLE) {
                        index = (long)Z_DVAL_P(offset);
                } else {
                        index = Z_LVAL_P(offset);
                }
                if (zend_hash_index_find(ht, index, (void **) &retval) == FAILURE) {
                        switch (type) {
                                case BP_VAR_R:
                                        zend_error(E_NOTICE, "Undefined offset: %ld", index);
                                case BP_VAR_UNSET:
                                case BP_VAR_IS:
                                        retval = &EG(uninitialized_zval_ptr);
                                        break;
                                case BP_VAR_RW:
                                        zend_error(E_NOTICE, "Undefined offset: %ld", index);
                                case BP_VAR_W: {
                                    zval *value;
                                    ALLOC_INIT_ZVAL(value);
                                        zend_hash_index_update(ht, index, (void**)&value, sizeof(void*), (void **)&retval);
                           }
                        }
                }
                return retval;
        default:
                zend_error(E_WARNING, "Illegal offset type");
                return (type == BP_VAR_W || type == BP_VAR_RW) ?
                        &EG(error_zval_ptr) : &EG(uninitialized_zval_ptr);
        }
} /* }}} */

static zval *spl_array_read_dimension_ex(int check_inherited, zval *object, zval *offset, int type TSRMLS_DC) /* {{{ */
{
        zval **ret;

        if (check_inherited) {
                spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
                if (intern->fptr_offset_get) {
                        zval *rv;
                        SEPARATE_ARG_IF_REF(offset);
                        zend_call_method_with_1_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_get, "offsetGet", &rv, offset); 
                        zval_ptr_dtor(&offset);
                        if (rv) {
                                zval_ptr_dtor(&intern->retval);
                                MAKE_STD_ZVAL(intern->retval);
                                ZVAL_ZVAL(intern->retval, rv, 1, 1);
                                return intern->retval;
                        }
                        return EG(uninitialized_zval_ptr);
                }
        }
        ret = spl_array_get_dimension_ptr_ptr(check_inherited, object, offset, type TSRMLS_CC);

        /* When in a write context,
         * ZE has to be fooled into thinking this is in a reference set
         * by separating (if necessary) and returning as an is_ref=1 zval (even if refcount == 1) */
        if ((type == BP_VAR_W || type == BP_VAR_RW) && !Z_ISREF_PP(ret)) {
                if (Z_REFCOUNT_PP(ret) > 1) {
                        zval *newval;

                        /* Separate */
                        MAKE_STD_ZVAL(newval);
                        *newval = **ret;
                        zval_copy_ctor(newval);
                        Z_SET_REFCOUNT_P(newval, 1);

                        /* Replace */
                        Z_DELREF_PP(ret);
                        *ret = newval;
                }

                Z_SET_ISREF_PP(ret);
        }

        return *ret;
} /* }}} */

static zval *spl_array_read_dimension(zval *object, zval *offset, int type TSRMLS_DC) /* {{{ */
{
        return spl_array_read_dimension_ex(1, object, offset, type TSRMLS_CC);
} /* }}} */

static void spl_array_write_dimension_ex(int check_inherited, zval *object, zval *offset, zval *value TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        long index;
        HashTable *ht;

        if (check_inherited && intern->fptr_offset_set) {
                if (!offset) {
                        ALLOC_INIT_ZVAL(offset);
                } else {
                        SEPARATE_ARG_IF_REF(offset);
                }
                zend_call_method_with_2_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_set, "offsetSet", NULL, offset, value);
                zval_ptr_dtor(&offset);
                return;
        }
        
        if (!offset) {
                ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                if (ht->nApplyCount > 0) {
                        zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                        return;
                }
                Z_ADDREF_P(value);
                zend_hash_next_index_insert(ht, (void**)&value, sizeof(void*), NULL);
                return;
        }
        switch(Z_TYPE_P(offset)) {
        case IS_STRING:
                ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                if (ht->nApplyCount > 0) {
                        zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                        return;
                }
                Z_ADDREF_P(value);
                zend_symtable_update(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void**)&value, sizeof(void*), NULL);
                return;
        case IS_DOUBLE:
        case IS_RESOURCE:
        case IS_BOOL: 
        case IS_LONG: 
                ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                if (ht->nApplyCount > 0) {
                        zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                        return;
                }
                if (offset->type == IS_DOUBLE) {
                        index = (long)Z_DVAL_P(offset);
                } else {
                        index = Z_LVAL_P(offset);
                }
                Z_ADDREF_P(value);
                zend_hash_index_update(ht, index, (void**)&value, sizeof(void*), NULL);
                return;
        case IS_NULL:
                ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                if (ht->nApplyCount > 0) {
                        zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                        return;
                }
                Z_ADDREF_P(value);
                zend_hash_next_index_insert(ht, (void**)&value, sizeof(void*), NULL);
                return;
        default:
                zend_error(E_WARNING, "Illegal offset type");
                return;
        }
} /* }}} */

static void spl_array_write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC) /* {{{ */
{
        spl_array_write_dimension_ex(1, object, offset, value TSRMLS_CC);
} /* }}} */

static void spl_array_unset_dimension_ex(int check_inherited, zval *object, zval *offset TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        long index;
        HashTable *ht;

        if (check_inherited && intern->fptr_offset_del) {
                SEPARATE_ARG_IF_REF(offset);
                zend_call_method_with_1_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_del, "offsetUnset", NULL, offset);
                zval_ptr_dtor(&offset);
                return;
        }

        switch(Z_TYPE_P(offset)) {
        case IS_STRING:
                ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                if (ht->nApplyCount > 0) {
                        zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                        return;
                }
                if (ht == &EG(symbol_table)) {
                        if (zend_delete_global_variable(Z_STRVAL_P(offset), Z_STRLEN_P(offset) TSRMLS_CC)) {
                                zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
                        }
                } else {
                        if (zend_symtable_del(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1) == FAILURE) {
                                zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
                        } else {
                                spl_array_object *obj = intern;

                                while (1) {
                                        if ((obj->ar_flags & SPL_ARRAY_IS_SELF) != 0) {
                                                break;
                                        } else if (Z_TYPE_P(obj->array) == IS_OBJECT) {
                                            if ((obj->ar_flags & SPL_ARRAY_USE_OTHER) == 0) {
                                                        obj = (spl_array_object*)zend_object_store_get_object(obj->array TSRMLS_CC);
                                                break;
                                                } else {
                                                        obj = (spl_array_object*)zend_object_store_get_object(obj->array TSRMLS_CC);
                                            }
                                        } else {
                                                obj = NULL;
                                                break;
                                        }
                                }
                                if (obj) {
                                        zend_property_info *property_info = zend_get_property_info(obj->std.ce, offset, 1 TSRMLS_CC);

                                        if (property_info &&
                                            (property_info->flags & ZEND_ACC_STATIC) == 0 &&
                                            property_info->offset >= 0) {
                                            obj->std.properties_table[property_info->offset] = NULL;
                                        }
                                }
                        }                       
                }
                break;
        case IS_DOUBLE:
        case IS_RESOURCE:
        case IS_BOOL: 
        case IS_LONG: 
                if (offset->type == IS_DOUBLE) {
                        index = (long)Z_DVAL_P(offset);
                } else {
                        index = Z_LVAL_P(offset);
                }
                ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                if (ht->nApplyCount > 0) {
                        zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
                        return;
                }
                if (zend_hash_index_del(ht, index) == FAILURE) {
                        zend_error(E_NOTICE,"Undefined offset: %ld", Z_LVAL_P(offset));
                }
                break;
        default:
                zend_error(E_WARNING, "Illegal offset type");
                return;
        }
        spl_hash_verify_pos(intern TSRMLS_CC); /* call rewind on FAILURE */
} /* }}} */

static void spl_array_unset_dimension(zval *object, zval *offset TSRMLS_DC) /* {{{ */
{
        spl_array_unset_dimension_ex(1, object, offset TSRMLS_CC);
} /* }}} */

static int spl_array_has_dimension_ex(int check_inherited, zval *object, zval *offset, int check_empty TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        long index;
        zval *rv, **tmp;

        if (check_inherited && intern->fptr_offset_has) {
                SEPARATE_ARG_IF_REF(offset);
                zend_call_method_with_1_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_has, "offsetExists", &rv, offset);
                zval_ptr_dtor(&offset);
                if (rv && zend_is_true(rv)) {
                        zval_ptr_dtor(&rv);
                        return 1;
                }
                if (rv) {
                        zval_ptr_dtor(&rv);
                }
                return 0;
        }
        
        switch(Z_TYPE_P(offset)) {
                case IS_STRING:
                        {
                                HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                                if (zend_symtable_find(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void **) &tmp) != FAILURE) {
                                        switch (check_empty) {
                                                case 0:
                                                        return Z_TYPE_PP(tmp) != IS_NULL;
                                                case 2:
                                                        return 1;
                                                default:
                                                        return zend_is_true(*tmp);
                                        }
                                }
                        }
                        return 0;
                case IS_DOUBLE:
                case IS_RESOURCE:
                case IS_BOOL: 
                case IS_LONG:
                        {       
                                HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
                                if (offset->type == IS_DOUBLE) {
                                        index = (long)Z_DVAL_P(offset);
                                } else {
                                        index = Z_LVAL_P(offset);
                                }
                                if (zend_hash_index_find(ht, index, (void **)&tmp) != FAILURE) {
                                        switch (check_empty) {
                                                case 0:
                                                        return Z_TYPE_PP(tmp) != IS_NULL;
                                                case 2:
                                                        return 1;
                                                default:
                                                        return zend_is_true(*tmp);
                                        }
                                }
                                return 0;
                        }
                default:
                        zend_error(E_WARNING, "Illegal offset type");
        }
        return 0;
} /* }}} */

static int spl_array_has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC) /* {{{ */
{
        return spl_array_has_dimension_ex(1, object, offset, check_empty TSRMLS_CC);
} /* }}} */

/* {{{ spl_array_object_verify_pos_ex */
static inline int spl_array_object_verify_pos_ex(spl_array_object *object, HashTable *ht, const char *msg_prefix TSRMLS_DC)
{
        if (!ht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%sArray was modified outside object and is no longer an array", msg_prefix);
                return FAILURE;
        }

        if (object->pos && (object->ar_flags & SPL_ARRAY_IS_REF) && spl_hash_verify_pos_ex(object, ht TSRMLS_CC) == FAILURE) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%sArray was modified outside object and internal position is no longer valid", msg_prefix);
                return FAILURE;
        }

        return SUCCESS;
} /* }}} */

/* {{{ spl_array_object_verify_pos */
static inline int spl_array_object_verify_pos(spl_array_object *object, HashTable *ht TSRMLS_DC)
{
        return spl_array_object_verify_pos_ex(object, ht, "" TSRMLS_CC);
} /* }}} */

/* {{{ proto bool ArrayObject::offsetExists(mixed $index)
       proto bool ArrayIterator::offsetExists(mixed $index)
   Returns whether the requested $index exists. */
SPL_METHOD(Array, offsetExists)
{
        zval *index;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &index) == FAILURE) {
                return;
        }
        RETURN_BOOL(spl_array_has_dimension_ex(0, getThis(), index, 2 TSRMLS_CC));
} /* }}} */

/* {{{ proto mixed ArrayObject::offsetGet(mixed $index)
       proto mixed ArrayIterator::offsetGet(mixed $index)
   Returns the value at the specified $index. */
SPL_METHOD(Array, offsetGet)
{
        zval *index, *value;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &index) == FAILURE) {
                return;
        }
        value = spl_array_read_dimension_ex(0, getThis(), index, BP_VAR_R TSRMLS_CC);
        RETURN_ZVAL(value, 1, 0);
} /* }}} */

/* {{{ proto void ArrayObject::offsetSet(mixed $index, mixed $newval)
       proto void ArrayIterator::offsetSet(mixed $index, mixed $newval)
   Sets the value at the specified $index to $newval. */
SPL_METHOD(Array, offsetSet)
{
        zval *index, *value;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zz", &index, &value) == FAILURE) {
                return;
        }
        spl_array_write_dimension_ex(0, getThis(), index, value TSRMLS_CC);
} /* }}} */

void spl_array_iterator_append(zval *object, zval *append_value TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        if (!aht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and is no longer an array");
                return;
        }
        
        if (Z_TYPE_P(intern->array) == IS_OBJECT) {
                php_error_docref(NULL TSRMLS_CC, E_RECOVERABLE_ERROR, "Cannot append properties to objects, use %s::offsetSet() instead", Z_OBJCE_P(object)->name);
                return;
        }

        spl_array_write_dimension(object, NULL, append_value TSRMLS_CC);
        if (!intern->pos) {
                spl_array_set_pos(intern, aht->pListTail);
        }
} /* }}} */

/* {{{ proto void ArrayObject::append(mixed $newval)
       proto void ArrayIterator::append(mixed $newval)
   Appends the value (cannot be called for objects). */
SPL_METHOD(Array, append)
{
        zval *value;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &value) == FAILURE) {
                return;
        }
        spl_array_iterator_append(getThis(), value TSRMLS_CC);
} /* }}} */

/* {{{ proto void ArrayObject::offsetUnset(mixed $index)
       proto void ArrayIterator::offsetUnset(mixed $index)
   Unsets the value at the specified $index. */
SPL_METHOD(Array, offsetUnset)
{
        zval *index;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &index) == FAILURE) {
                return;
        }
        spl_array_unset_dimension_ex(0, getThis(), index TSRMLS_CC);
} /* }}} */

/* {{{ proto array ArrayObject::getArrayCopy()
      proto array ArrayIterator::getArrayCopy()
   Return a copy of the contained array */
SPL_METHOD(Array, getArrayCopy)
{
        zval *object = getThis(), *tmp;
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
    
    array_init(return_value);
        zend_hash_copy(HASH_OF(return_value), spl_array_get_hash_table(intern, 0 TSRMLS_CC), (copy_ctor_func_t) zval_add_ref, &tmp, sizeof(zval*));
} /* }}} */

static HashTable *spl_array_get_properties(zval *object TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *result;

        if (intern->nApplyCount > 1) {
                php_error_docref(NULL TSRMLS_CC, E_ERROR, "Nesting level too deep - recursive dependency?");
        }

        intern->nApplyCount++;
        result = spl_array_get_hash_table(intern, 1 TSRMLS_CC);
        intern->nApplyCount--;
        return result;
} /* }}} */

static HashTable* spl_array_get_debug_info(zval *obj, int *is_temp TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(obj TSRMLS_CC);
        zval *tmp, *storage;
        int name_len;
        char *zname;
        zend_class_entry *base;

        *is_temp = 0;

        if (!intern->std.properties) {
                rebuild_object_properties(&intern->std);
        }

        if (HASH_OF(intern->array) == intern->std.properties) {
                return intern->std.properties;
        } else {
                if (intern->debug_info == NULL) {
                        ALLOC_HASHTABLE(intern->debug_info);
                        ZEND_INIT_SYMTABLE_EX(intern->debug_info, zend_hash_num_elements(intern->std.properties) + 1, 0);
                }

                if (intern->debug_info->nApplyCount == 0) {
                        zend_hash_clean(intern->debug_info);
                        zend_hash_copy(intern->debug_info, intern->std.properties, (copy_ctor_func_t) zval_add_ref, (void *) &tmp, sizeof(zval *));

                        storage = intern->array;
                        zval_add_ref(&storage);

                        base = (Z_OBJ_HT_P(obj) == &spl_handler_ArrayIterator) ? spl_ce_ArrayIterator : spl_ce_ArrayObject;
                        zname = spl_gen_private_prop_name(base, "storage", sizeof("storage")-1, &name_len TSRMLS_CC);
                        zend_symtable_update(intern->debug_info, zname, name_len+1, &storage, sizeof(zval *), NULL);
                        efree(zname);
                }

                return intern->debug_info;
        }
}
/* }}} */

static zval *spl_array_read_property(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
        && !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
                return spl_array_read_dimension(object, member, type TSRMLS_CC);
        }
        return std_object_handlers.read_property(object, member, type, key TSRMLS_CC);
} /* }}} */

static void spl_array_write_property(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
        && !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
                spl_array_write_dimension(object, member, value TSRMLS_CC);
                return;
        }
        std_object_handlers.write_property(object, member, value, key TSRMLS_CC);
} /* }}} */

static zval **spl_array_get_property_ptr_ptr(zval *object, zval *member, const zend_literal *key TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
        && !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
                return spl_array_get_dimension_ptr_ptr(1, object, member, BP_VAR_RW TSRMLS_CC);
        }
        return std_object_handlers.get_property_ptr_ptr(object, member, key TSRMLS_CC);
} /* }}} */

static int spl_array_has_property(zval *object, zval *member, int has_set_exists, const zend_literal *key TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
        && !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
                return spl_array_has_dimension(object, member, has_set_exists TSRMLS_CC);
        }
        return std_object_handlers.has_property(object, member, has_set_exists, key TSRMLS_CC);
} /* }}} */

static void spl_array_unset_property(zval *object, zval *member, const zend_literal *key TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
        && !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
                spl_array_unset_dimension(object, member TSRMLS_CC);
                spl_array_rewind(intern TSRMLS_CC); /* because deletion might invalidate position */
                return;
        }
        std_object_handlers.unset_property(object, member, key TSRMLS_CC);
} /* }}} */

static int spl_array_compare_objects(zval *o1, zval *o2 TSRMLS_DC) /* {{{ */
{
        HashTable                       *ht1,
                                                *ht2;
        spl_array_object        *intern1,
                                                *intern2;
        int                                     result  = 0;
        zval                            temp_zv;

        intern1 = (spl_array_object*)zend_object_store_get_object(o1 TSRMLS_CC);
        intern2 = (spl_array_object*)zend_object_store_get_object(o2 TSRMLS_CC);
        ht1             = spl_array_get_hash_table(intern1, 0 TSRMLS_CC);
        ht2             = spl_array_get_hash_table(intern2, 0 TSRMLS_CC);

        zend_compare_symbol_tables(&temp_zv, ht1, ht2 TSRMLS_CC);
        result = (int)Z_LVAL(temp_zv);
        /* if we just compared std.properties, don't do it again */
        if (result == 0 &&
                        !(ht1 == intern1->std.properties && ht2 == intern2->std.properties)) {
                result = std_object_handlers.compare_objects(o1, o2 TSRMLS_CC);
        }
        return result;
} /* }}} */

static int spl_array_skip_protected(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{
        char *string_key;
        uint string_length;
        ulong num_key;

        if (Z_TYPE_P(intern->array) == IS_OBJECT) {
                do {
                        if (zend_hash_get_current_key_ex(aht, &string_key, &string_length, &num_key, 0, &intern->pos) == HASH_KEY_IS_STRING) {
                                if (!string_length || string_key[0]) {
                                        return SUCCESS;
                                }
                        } else {
                                return SUCCESS;
                        }
                        if (zend_hash_has_more_elements_ex(aht, &intern->pos) != SUCCESS) {
                                return FAILURE;
                        }
                        zend_hash_move_forward_ex(aht, &intern->pos);
                        spl_array_update_pos(intern);
                } while (1);
        }
        return FAILURE;
} /* }}} */

static int spl_array_next_no_verify(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{
        zend_hash_move_forward_ex(aht, &intern->pos);
        spl_array_update_pos(intern);
        if (Z_TYPE_P(intern->array) == IS_OBJECT) {
                return spl_array_skip_protected(intern, aht TSRMLS_CC);
        } else {
                return zend_hash_has_more_elements_ex(aht, &intern->pos);
        }
} /* }}} */

static int spl_array_next_ex(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{
        if ((intern->ar_flags & SPL_ARRAY_IS_REF) && spl_hash_verify_pos_ex(intern, aht TSRMLS_CC) == FAILURE) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and internal position is no longer valid");
                return FAILURE;
        }

        return spl_array_next_no_verify(intern, aht TSRMLS_CC);
} /* }}} */

static int spl_array_next(spl_array_object *intern TSRMLS_DC) /* {{{ */
{
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        return spl_array_next_ex(intern, aht TSRMLS_CC);

} /* }}} */

/* define an overloaded iterator structure */
typedef struct {
        zend_user_iterator    intern;
        spl_array_object      *object;
} spl_array_it;

static void spl_array_it_dtor(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
{
        spl_array_it *iterator = (spl_array_it *)iter;

        zend_user_it_invalidate_current(iter TSRMLS_CC);
        zval_ptr_dtor((zval**)&iterator->intern.it.data);

        efree(iterator);
}
/* }}} */
        
static int spl_array_it_valid(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
{
        spl_array_it       *iterator = (spl_array_it *)iter;
        spl_array_object   *object   = iterator->object;
        HashTable          *aht      = spl_array_get_hash_table(object, 0 TSRMLS_CC);

        if (object->ar_flags & SPL_ARRAY_OVERLOADED_VALID) {
                return zend_user_it_valid(iter TSRMLS_CC);
        } else {
                if (spl_array_object_verify_pos_ex(object, aht, "ArrayIterator::valid(): " TSRMLS_CC) == FAILURE) {
                        return FAILURE;
                }

                return zend_hash_has_more_elements_ex(aht, &object->pos);
        }
}
/* }}} */

static void spl_array_it_get_current_data(zend_object_iterator *iter, zval ***data TSRMLS_DC) /* {{{ */
{
        spl_array_it       *iterator = (spl_array_it *)iter;
        spl_array_object   *object   = iterator->object;
        HashTable          *aht      = spl_array_get_hash_table(object, 0 TSRMLS_CC);

        if (object->ar_flags & SPL_ARRAY_OVERLOADED_CURRENT) {
                zend_user_it_get_current_data(iter, data TSRMLS_CC);
        } else {
                if (zend_hash_get_current_data_ex(aht, (void**)data, &object->pos) == FAILURE) {
                        *data = NULL;
                }
        }
}
/* }}} */

static int spl_array_it_get_current_key(zend_object_iterator *iter, char **str_key, uint *str_key_len, ulong *int_key TSRMLS_DC) /* {{{ */
{
        spl_array_it       *iterator = (spl_array_it *)iter;
        spl_array_object   *object   = iterator->object;
        HashTable          *aht      = spl_array_get_hash_table(object, 0 TSRMLS_CC);

        if (object->ar_flags & SPL_ARRAY_OVERLOADED_KEY) {
                return zend_user_it_get_current_key(iter, str_key, str_key_len, int_key TSRMLS_CC);
        } else {
                if (spl_array_object_verify_pos_ex(object, aht, "ArrayIterator::current(): " TSRMLS_CC) == FAILURE) {
                        return HASH_KEY_NON_EXISTANT;
                }
        
                return zend_hash_get_current_key_ex(aht, str_key, str_key_len, int_key, 1, &object->pos);
        }
}
/* }}} */

static void spl_array_it_move_forward(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
{
        spl_array_it       *iterator = (spl_array_it *)iter;
        spl_array_object   *object   = iterator->object;
        HashTable          *aht      = spl_array_get_hash_table(object, 0 TSRMLS_CC);

        if (object->ar_flags & SPL_ARRAY_OVERLOADED_NEXT) {
                zend_user_it_move_forward(iter TSRMLS_CC);
        } else {
                zend_user_it_invalidate_current(iter TSRMLS_CC);
                if (!aht) {
                        php_error_docref(NULL TSRMLS_CC, E_NOTICE, "ArrayIterator::current(): Array was modified outside object and is no longer an array");
                        return;
                }
        
                if ((object->ar_flags & SPL_ARRAY_IS_REF) && spl_hash_verify_pos_ex(object, aht TSRMLS_CC) == FAILURE) {
                        php_error_docref(NULL TSRMLS_CC, E_NOTICE, "ArrayIterator::next(): Array was modified outside object and internal position is no longer valid");
                } else {
                        spl_array_next_no_verify(object, aht TSRMLS_CC);
                }
        }
}
/* }}} */

static void spl_array_rewind_ex(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{

        zend_hash_internal_pointer_reset_ex(aht, &intern->pos);
        spl_array_update_pos(intern);
        spl_array_skip_protected(intern, aht TSRMLS_CC);

} /* }}} */

static void spl_array_rewind(spl_array_object *intern TSRMLS_DC) /* {{{ */
{
        HashTable          *aht      = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        if (!aht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "ArrayIterator::rewind(): Array was modified outside object and is no longer an array");
                return;
        }

        spl_array_rewind_ex(intern, aht TSRMLS_CC);
}
/* }}} */

static void spl_array_it_rewind(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
{
        spl_array_it       *iterator = (spl_array_it *)iter;
        spl_array_object   *object   = iterator->object;

        if (object->ar_flags & SPL_ARRAY_OVERLOADED_REWIND) {
                zend_user_it_rewind(iter TSRMLS_CC);
        } else {
                zend_user_it_invalidate_current(iter TSRMLS_CC);
                spl_array_rewind(object TSRMLS_CC);
        }
}
/* }}} */

/* {{{ spl_array_set_array */
static void spl_array_set_array(zval *object, spl_array_object *intern, zval **array, long ar_flags, int just_array TSRMLS_DC) {

        if (Z_TYPE_PP(array) == IS_ARRAY) {
                SEPARATE_ZVAL_IF_NOT_REF(array);
        }

        if (Z_TYPE_PP(array) == IS_OBJECT && (Z_OBJ_HT_PP(array) == &spl_handler_ArrayObject || Z_OBJ_HT_PP(array) == &spl_handler_ArrayIterator)) {
                zval_ptr_dtor(&intern->array);
                if (just_array) {
                        spl_array_object *other = (spl_array_object*)zend_object_store_get_object(*array TSRMLS_CC);
                        ar_flags = other->ar_flags & ~SPL_ARRAY_INT_MASK;
                }               
                ar_flags |= SPL_ARRAY_USE_OTHER;
                intern->array = *array;
        } else {
                if (Z_TYPE_PP(array) != IS_OBJECT && Z_TYPE_PP(array) != IS_ARRAY) {
                        zend_throw_exception(spl_ce_InvalidArgumentException, "Passed variable is not an array or object, using empty array instead", 0 TSRMLS_CC);
                        return;
                }
                zval_ptr_dtor(&intern->array);
                intern->array = *array;
        }
        if (object == *array) {
                intern->ar_flags |= SPL_ARRAY_IS_SELF;
                intern->ar_flags &= ~SPL_ARRAY_USE_OTHER;
        } else {
                intern->ar_flags &= ~SPL_ARRAY_IS_SELF;
        }
        intern->ar_flags |= ar_flags;
        Z_ADDREF_P(intern->array);
        if (Z_TYPE_PP(array) == IS_OBJECT) {
                zend_object_get_properties_t handler = Z_OBJ_HANDLER_PP(array, get_properties);
                if ((handler != std_object_handlers.get_properties && handler != spl_array_get_properties)
                || !spl_array_get_hash_table(intern, 0 TSRMLS_CC)) {
                        zend_throw_exception_ex(spl_ce_InvalidArgumentException, 0 TSRMLS_CC, "Overloaded object of type %s is not compatible with %s", Z_OBJCE_PP(array)->name, intern->std.ce->name);
                }
        }

        spl_array_rewind(intern TSRMLS_CC);
}
/* }}} */

/* iterator handler table */
zend_object_iterator_funcs spl_array_it_funcs = {
        spl_array_it_dtor,
        spl_array_it_valid,
        spl_array_it_get_current_data,
        spl_array_it_get_current_key,
        spl_array_it_move_forward,
        spl_array_it_rewind
};

zend_object_iterator *spl_array_get_iterator(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC) /* {{{ */
{
        spl_array_it       *iterator;
        spl_array_object   *array_object = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if (by_ref && (array_object->ar_flags & SPL_ARRAY_OVERLOADED_CURRENT)) {
                zend_error(E_ERROR, "An iterator cannot be used with foreach by reference");
        }

        iterator     = emalloc(sizeof(spl_array_it));

        Z_ADDREF_P(object);
        iterator->intern.it.data = (void*)object;
        iterator->intern.it.funcs = &spl_array_it_funcs;
        iterator->intern.ce = ce;
        iterator->intern.value = NULL;
        iterator->object = array_object;
        
        return (zend_object_iterator*)iterator;
}
/* }}} */

/* {{{ proto void ArrayObject::__construct(array|object ar = array() [, int flags = 0 [, string iterator_class = "ArrayIterator"]])
       proto void ArrayIterator::__construct(array|object ar = array() [, int flags = 0])
   Constructs a new array iterator from a path. */
SPL_METHOD(Array, __construct)
{
        zval *object = getThis();
        spl_array_object *intern;
        zval **array;
        long ar_flags = 0;
        zend_class_entry *ce_get_iterator = spl_ce_Iterator;
        zend_error_handling error_handling;

        if (ZEND_NUM_ARGS() == 0) {
                return; /* nothing to do */
        }

        zend_replace_error_handling(EH_THROW, spl_ce_InvalidArgumentException, &error_handling TSRMLS_CC);

        intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z|lC", &array, &ar_flags, &ce_get_iterator) == FAILURE) {
                zend_restore_error_handling(&error_handling TSRMLS_CC);
                return;
        }

        if (ZEND_NUM_ARGS() > 2) {
                intern->ce_get_iterator = ce_get_iterator;
        }

        ar_flags &= ~SPL_ARRAY_INT_MASK;

        spl_array_set_array(object, intern, array, ar_flags, ZEND_NUM_ARGS() == 1 TSRMLS_CC);

        zend_restore_error_handling(&error_handling TSRMLS_CC);

}
 /* }}} */

/* {{{ proto void ArrayObject::setIteratorClass(string iterator_class)
   Set the class used in getIterator. */
SPL_METHOD(Array, setIteratorClass)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        zend_class_entry * ce_get_iterator = spl_ce_Iterator;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "C", &ce_get_iterator) == FAILURE) {
                return;
        }

        intern->ce_get_iterator = ce_get_iterator;
}
/* }}} */

/* {{{ proto string ArrayObject::getIteratorClass()
   Get the class used in getIterator. */
SPL_METHOD(Array, getIteratorClass)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        RETURN_STRING(intern->ce_get_iterator->name, 1);
}
/* }}} */

/* {{{ proto int ArrayObject::getFlags()
   Get flags */
SPL_METHOD(Array, getFlags)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }
        
        RETURN_LONG(intern->ar_flags & ~SPL_ARRAY_INT_MASK);
}
/* }}} */

/* {{{ proto void ArrayObject::setFlags(int flags)
   Set flags */
SPL_METHOD(Array, setFlags)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        long ar_flags = 0;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &ar_flags) == FAILURE) {
                return;
        }
        
        intern->ar_flags = (intern->ar_flags & SPL_ARRAY_INT_MASK) | (ar_flags & ~SPL_ARRAY_INT_MASK);
}
/* }}} */

/* {{{ proto Array|Object ArrayObject::exchangeArray(Array|Object ar = array())
   Replace the referenced array or object with a new one and return the old one (right now copy - to be changed) */
SPL_METHOD(Array, exchangeArray)
{
        zval *object = getThis(), *tmp, **array;
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        array_init(return_value);
        zend_hash_copy(HASH_OF(return_value), spl_array_get_hash_table(intern, 0 TSRMLS_CC), (copy_ctor_func_t) zval_add_ref, &tmp, sizeof(zval*));
        
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &array) == FAILURE) {
                return;
        }

        spl_array_set_array(object, intern, array, 0L, 1 TSRMLS_CC);

}
/* }}} */

/* {{{ proto ArrayIterator ArrayObject::getIterator()
   Create a new iterator from a ArrayObject instance */
SPL_METHOD(Array, getIterator)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        spl_array_object *iterator;
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (!aht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and is no longer an array");
                return;
        }

        return_value->type = IS_OBJECT;
        return_value->value.obj = spl_array_object_new_ex(intern->ce_get_iterator, &iterator, object, 0 TSRMLS_CC);
        Z_SET_REFCOUNT_P(return_value, 1);
        Z_SET_ISREF_P(return_value);
}
/* }}} */

/* {{{ proto void ArrayIterator::rewind()
   Rewind array back to the start */
SPL_METHOD(Array, rewind)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        spl_array_rewind(intern TSRMLS_CC);
}
/* }}} */

/* {{{ proto void ArrayIterator::seek(int $position)
   Seek to position. */
SPL_METHOD(Array, seek)
{
        long opos, position;
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        int result;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &position) == FAILURE) {
                return;
        }

        if (!aht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and is no longer an array");
                return;
        }

        opos = position;

        if (position >= 0) { /* negative values are not supported */
                spl_array_rewind(intern TSRMLS_CC);
                result = SUCCESS;
                
                while (position-- > 0 && (result = spl_array_next(intern TSRMLS_CC)) == SUCCESS);
        
                if (result == SUCCESS && zend_hash_has_more_elements_ex(aht, &intern->pos) == SUCCESS) {
                        return; /* ok */
                }
        }
        zend_throw_exception_ex(spl_ce_OutOfBoundsException, 0 TSRMLS_CC, "Seek position %ld is out of range", opos);
} /* }}} */

int static spl_array_object_count_elements_helper(spl_array_object *intern, long *count TSRMLS_DC) /* {{{ */
{
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        HashPosition pos;

        if (!aht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and is no longer an array");
                *count = 0;
                return FAILURE;
        }

        if (Z_TYPE_P(intern->array) == IS_OBJECT) {
                /* We need to store the 'pos' since we'll modify it in the functions 
                 * we're going to call and which do not support 'pos' as parameter. */
                pos = intern->pos;
                *count = 0;
                spl_array_rewind(intern TSRMLS_CC);
                while(intern->pos && spl_array_next(intern TSRMLS_CC) == SUCCESS) {
                        (*count)++;
                }
                spl_array_set_pos(intern, pos);
                return SUCCESS;
        } else {
                *count = zend_hash_num_elements(aht);
                return SUCCESS;
        }
} /* }}} */

int spl_array_object_count_elements(zval *object, long *count TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);

        if (intern->fptr_count) {
                zval *rv;
                zend_call_method_with_0_params(&object, intern->std.ce, &intern->fptr_count, "count", &rv);
                if (rv) {
                        zval_ptr_dtor(&intern->retval);
                        MAKE_STD_ZVAL(intern->retval);
                        ZVAL_ZVAL(intern->retval, rv, 1, 1);
                        convert_to_long(intern->retval);
                        *count = (long) Z_LVAL_P(intern->retval);
                        return SUCCESS;
                }
                *count = 0;
                return FAILURE;
        }
        return spl_array_object_count_elements_helper(intern, count TSRMLS_CC);
} /* }}} */

/* {{{ proto int ArrayObject::count()
       proto int ArrayIterator::count()
   Return the number of elements in the Iterator. */
SPL_METHOD(Array, count)
{
        long count;
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(getThis() TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        spl_array_object_count_elements_helper(intern, &count TSRMLS_CC);

        RETURN_LONG(count);
} /* }}} */

static void spl_array_method(INTERNAL_FUNCTION_PARAMETERS, char *fname, int fname_len, int use_arg) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(getThis() TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        zval *tmp, *arg = NULL;
        zval *retval_ptr = NULL;
        
        MAKE_STD_ZVAL(tmp);
        Z_TYPE_P(tmp) = IS_ARRAY;
        Z_ARRVAL_P(tmp) = aht;
        
        if (!use_arg) {
                aht->nApplyCount++;
                zend_call_method(NULL, NULL, NULL, fname, fname_len, &retval_ptr, 1, tmp, NULL TSRMLS_CC);
                aht->nApplyCount--;
        } else if (use_arg == SPL_ARRAY_METHOD_MAY_USER_ARG) {
                if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "|z", &arg) == FAILURE) {
                        Z_TYPE_P(tmp) = IS_NULL;
                        zval_ptr_dtor(&tmp);
                        zend_throw_exception(spl_ce_BadMethodCallException, "Function expects one argument at most", 0 TSRMLS_CC);
                        return;
                }
                aht->nApplyCount++;
                zend_call_method(NULL, NULL, NULL, fname, fname_len, &retval_ptr, arg? 2 : 1, tmp, arg TSRMLS_CC);
                aht->nApplyCount--;
        } else {
                if (ZEND_NUM_ARGS() != 1 || zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "z", &arg) == FAILURE) {
                        Z_TYPE_P(tmp) = IS_NULL;
                        zval_ptr_dtor(&tmp);
                        zend_throw_exception(spl_ce_BadMethodCallException, "Function expects exactly one argument", 0 TSRMLS_CC);
                        return;
                }
                aht->nApplyCount++;
                zend_call_method(NULL, NULL, NULL, fname, fname_len, &retval_ptr, 2, tmp, arg TSRMLS_CC);
                aht->nApplyCount--;
        }
        Z_TYPE_P(tmp) = IS_NULL; /* we want to destroy the zval, not the hashtable */
        zval_ptr_dtor(&tmp);
        if (retval_ptr) {
                COPY_PZVAL_TO_ZVAL(*return_value, retval_ptr);
        }
} /* }}} */

#define SPL_ARRAY_METHOD(cname, fname, use_arg) \
SPL_METHOD(cname, fname) \
{ \
        spl_array_method(INTERNAL_FUNCTION_PARAM_PASSTHRU, #fname, sizeof(#fname)-1, use_arg); \
}

/* {{{ proto int ArrayObject::asort([int $sort_flags = SORT_REGULAR ])
       proto int ArrayIterator::asort([int $sort_flags = SORT_REGULAR ])
   Sort the entries by values. */
SPL_ARRAY_METHOD(Array, asort, SPL_ARRAY_METHOD_MAY_USER_ARG) /* }}} */

/* {{{ proto int ArrayObject::ksort([int $sort_flags = SORT_REGULAR ])
       proto int ArrayIterator::ksort([int $sort_flags = SORT_REGULAR ])
   Sort the entries by key. */
SPL_ARRAY_METHOD(Array, ksort, SPL_ARRAY_METHOD_MAY_USER_ARG) /* }}} */

/* {{{ proto int ArrayObject::uasort(callback cmp_function)
       proto int ArrayIterator::uasort(callback cmp_function)
   Sort the entries by values user defined function. */
SPL_ARRAY_METHOD(Array, uasort, SPL_ARRAY_METHOD_USE_ARG) /* }}} */

/* {{{ proto int ArrayObject::uksort(callback cmp_function)
       proto int ArrayIterator::uksort(callback cmp_function)
   Sort the entries by key using user defined function. */
SPL_ARRAY_METHOD(Array, uksort, SPL_ARRAY_METHOD_USE_ARG) /* }}} */

/* {{{ proto int ArrayObject::natsort()
       proto int ArrayIterator::natsort()
   Sort the entries by values using "natural order" algorithm. */
SPL_ARRAY_METHOD(Array, natsort, SPL_ARRAY_METHOD_NO_ARG) /* }}} */

/* {{{ proto int ArrayObject::natcasesort()
       proto int ArrayIterator::natcasesort()
   Sort the entries by key using case insensitive "natural order" algorithm. */
SPL_ARRAY_METHOD(Array, natcasesort, SPL_ARRAY_METHOD_NO_ARG) /* }}} */

/* {{{ proto mixed|NULL ArrayIterator::current()
   Return current array entry */
SPL_METHOD(Array, current)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        zval **entry;
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (spl_array_object_verify_pos(intern, aht TSRMLS_CC) == FAILURE) {
                return;
        }

        if (zend_hash_get_current_data_ex(aht, (void **) &entry, &intern->pos) == FAILURE) {
                return;
        }
        RETVAL_ZVAL(*entry, 1, 0);
}
/* }}} */

/* {{{ proto mixed|NULL ArrayIterator::key()
   Return current array key */
SPL_METHOD(Array, key)
{
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }
        
        spl_array_iterator_key(getThis(), return_value TSRMLS_CC);
} /* }}} */

void spl_array_iterator_key(zval *object, zval *return_value TSRMLS_DC) /* {{{ */
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        char *string_key;
        uint string_length;
        ulong num_key;
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        if (spl_array_object_verify_pos(intern, aht TSRMLS_CC) == FAILURE) {
                return;
        }

        switch (zend_hash_get_current_key_ex(aht, &string_key, &string_length, &num_key, 1, &intern->pos)) {
                case HASH_KEY_IS_STRING:
                        RETVAL_STRINGL(string_key, string_length - 1, 0);
                        break;
                case HASH_KEY_IS_LONG:
                        RETVAL_LONG(num_key);
                        break;
                case HASH_KEY_NON_EXISTANT:
                        return;
        }
}
/* }}} */

/* {{{ proto void ArrayIterator::next()
   Move to next entry */
SPL_METHOD(Array, next)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (spl_array_object_verify_pos(intern, aht TSRMLS_CC) == FAILURE) {
                return;
        }

        spl_array_next_no_verify(intern, aht TSRMLS_CC);
}
/* }}} */ 

/* {{{ proto bool ArrayIterator::valid()
   Check whether array contains more entries */
SPL_METHOD(Array, valid)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);

        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (spl_array_object_verify_pos(intern, aht TSRMLS_CC) == FAILURE) {
                RETURN_FALSE;
        } else {
                RETURN_BOOL(zend_hash_has_more_elements_ex(aht, &intern->pos) == SUCCESS);
        }
}
/* }}} */

/* {{{ proto bool RecursiveArrayIterator::hasChildren()
   Check whether current element has children (e.g. is an array) */
SPL_METHOD(Array, hasChildren)
{
        zval *object = getThis(), **entry;
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (spl_array_object_verify_pos(intern, aht TSRMLS_CC) == FAILURE) {
                RETURN_FALSE;
        }

        if (zend_hash_get_current_data_ex(aht, (void **) &entry, &intern->pos) == FAILURE) {
                RETURN_FALSE;
        }

        RETURN_BOOL(Z_TYPE_PP(entry) == IS_ARRAY || (Z_TYPE_PP(entry) == IS_OBJECT && (intern->ar_flags & SPL_ARRAY_CHILD_ARRAYS_ONLY) == 0));
}
/* }}} */

/* {{{ proto object RecursiveArrayIterator::getChildren()
   Create a sub iterator for the current element (same class as $this) */
SPL_METHOD(Array, getChildren)
{
        zval *object = getThis(), **entry, *flags;
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (spl_array_object_verify_pos(intern, aht TSRMLS_CC) == FAILURE) {
                return;
        }

        if (zend_hash_get_current_data_ex(aht, (void **) &entry, &intern->pos) == FAILURE) {
                return;
        }

        if (Z_TYPE_PP(entry) == IS_OBJECT) {
                if ((intern->ar_flags & SPL_ARRAY_CHILD_ARRAYS_ONLY) != 0) {
                        return;
                }
                if (instanceof_function(Z_OBJCE_PP(entry), Z_OBJCE_P(getThis()) TSRMLS_CC)) {
                        RETURN_ZVAL(*entry, 0, 0);
                }
        }

        MAKE_STD_ZVAL(flags);
        ZVAL_LONG(flags, SPL_ARRAY_USE_OTHER | intern->ar_flags);
        spl_instantiate_arg_ex2(Z_OBJCE_P(getThis()), &return_value, 0, *entry, flags TSRMLS_CC);
        zval_ptr_dtor(&flags);
}
/* }}} */

/* {{{ proto string ArrayObject::serialize()
   Serialize the object */
SPL_METHOD(Array, serialize)
{
        zval *object = getThis();
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
        HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
        zval members, *pmembers;
        php_serialize_data_t var_hash;
        smart_str buf = {0};
        zval *flags;
        
        if (zend_parse_parameters_none() == FAILURE) {
                return;
        }

        if (!aht) {
                php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and is no longer an array");
                return;
        }

        PHP_VAR_SERIALIZE_INIT(var_hash);

        MAKE_STD_ZVAL(flags);
        ZVAL_LONG(flags, (intern->ar_flags & SPL_ARRAY_CLONE_MASK));

        /* storage */
        smart_str_appendl(&buf, "x:", 2);
        php_var_serialize(&buf, &flags, &var_hash TSRMLS_CC);
        zval_ptr_dtor(&flags);

        if (!(intern->ar_flags & SPL_ARRAY_IS_SELF)) {
                php_var_serialize(&buf, &intern->array, &var_hash TSRMLS_CC);
                smart_str_appendc(&buf, ';');
        }

        /* members */
        smart_str_appendl(&buf, "m:", 2);
        INIT_PZVAL(&members);
        if (!intern->std.properties) {
                rebuild_object_properties(&intern->std);
        }
        Z_ARRVAL(members) = intern->std.properties;
        Z_TYPE(members) = IS_ARRAY;
        pmembers = &members;
        php_var_serialize(&buf, &pmembers, &var_hash TSRMLS_CC); /* finishes the string */

        /* done */
        PHP_VAR_SERIALIZE_DESTROY(var_hash);

        if (buf.c) {
                RETURN_STRINGL(buf.c, buf.len, 0);
        }

        RETURN_NULL();
} /* }}} */

/* {{{ proto void ArrayObject::unserialize(string serialized)
 * unserialize the object
 */
SPL_METHOD(Array, unserialize)
{
        spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(getThis() TSRMLS_CC);

        char *buf;
        int buf_len;
        const unsigned char *p, *s;
        php_unserialize_data_t var_hash;
        zval *pmembers, *pflags = NULL;
        long flags;
        
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &buf, &buf_len) == FAILURE) {
                return;
        }

        if (buf_len == 0) {
                zend_throw_exception_ex(spl_ce_UnexpectedValueException, 0 TSRMLS_CC, "Empty serialized string cannot be empty");
                return;
        }

        /* storage */
        s = p = (const unsigned char*)buf;
        PHP_VAR_UNSERIALIZE_INIT(var_hash);

        if (*p!= 'x' || *++p != ':') {
                goto outexcept;
        }
        ++p;

        ALLOC_INIT_ZVAL(pflags);
        if (!php_var_unserialize(&pflags, &p, s + buf_len, &var_hash TSRMLS_CC) || Z_TYPE_P(pflags) != IS_LONG) {
                zval_ptr_dtor(&pflags);
                goto outexcept;
        }

        --p; /* for ';' */
        flags = Z_LVAL_P(pflags);
        zval_ptr_dtor(&pflags);
        /* flags needs to be verified and we also need to verify whether the next
         * thing we get is ';'. After that we require an 'm' or somethign else
         * where 'm' stands for members and anything else should be an array. If
         * neither 'a' or 'm' follows we have an error. */

        if (*p != ';') {
                goto outexcept;
        }
        ++p;

        if (*p!='m') {
                if (*p!='a' && *p!='O' && *p!='C') {
                        goto outexcept;
                }
                intern->ar_flags &= ~SPL_ARRAY_CLONE_MASK;
                intern->ar_flags |= flags & SPL_ARRAY_CLONE_MASK;
                zval_ptr_dtor(&intern->array);
                ALLOC_INIT_ZVAL(intern->array);
                if (!php_var_unserialize(&intern->array, &p, s + buf_len, &var_hash TSRMLS_CC)) {
                        goto outexcept;
                }
        }
        if (*p != ';') {
                goto outexcept;
        }
        ++p;

        /* members */
        if (*p!= 'm' || *++p != ':') {
                goto outexcept;
        }
        ++p;

        ALLOC_INIT_ZVAL(pmembers);
        if (!php_var_unserialize(&pmembers, &p, s + buf_len, &var_hash TSRMLS_CC)) {
                zval_ptr_dtor(&pmembers);
                goto outexcept;
        }

        /* copy members */
        if (!intern->std.properties) {
                rebuild_object_properties(&intern->std);
        }
        zend_hash_copy(intern->std.properties, Z_ARRVAL_P(pmembers), (copy_ctor_func_t) zval_add_ref, (void *) NULL, sizeof(zval *));
        zval_ptr_dtor(&pmembers);

        /* done reading $serialized */

        PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
        return;

outexcept:
        PHP_VAR_UNSERIALIZE_DESTROY(var_hash);
        zend_throw_exception_ex(spl_ce_UnexpectedValueException, 0 TSRMLS_CC, "Error at offset %ld of %d bytes", (long)((char*)p - buf), buf_len);
        return;

} /* }}} */

/* {{{ arginfo and function tbale */
ZEND_BEGIN_ARG_INFO(arginfo_array___construct, 0)
        ZEND_ARG_INFO(0, array)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_array_offsetGet, 0, 0, 1)
        ZEND_ARG_INFO(0, index)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_array_offsetSet, 0, 0, 2)
        ZEND_ARG_INFO(0, index)
        ZEND_ARG_INFO(0, newval)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_array_append, 0)
        ZEND_ARG_INFO(0, value)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_array_seek, 0)
        ZEND_ARG_INFO(0, position)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_array_exchangeArray, 0)
        ZEND_ARG_INFO(0, array)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_array_setFlags, 0)
        ZEND_ARG_INFO(0, flags)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_array_setIteratorClass, 0)
        ZEND_ARG_INFO(0, iteratorClass)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_array_uXsort, 0)
        ZEND_ARG_INFO(0, cmp_function)
ZEND_END_ARG_INFO();

ZEND_BEGIN_ARG_INFO(arginfo_array_unserialize, 0)
        ZEND_ARG_INFO(0, serialized)
ZEND_END_ARG_INFO();

ZEND_BEGIN_ARG_INFO(arginfo_array_void, 0)
ZEND_END_ARG_INFO()

static const zend_function_entry spl_funcs_ArrayObject[] = {
        SPL_ME(Array, __construct,      arginfo_array___construct,      ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetExists,     arginfo_array_offsetGet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetGet,        arginfo_array_offsetGet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetSet,        arginfo_array_offsetSet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetUnset,      arginfo_array_offsetGet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, append,           arginfo_array_append,           ZEND_ACC_PUBLIC)
        SPL_ME(Array, getArrayCopy,     arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, count,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, getFlags,         arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, setFlags,         arginfo_array_setFlags,         ZEND_ACC_PUBLIC)
        SPL_ME(Array, asort,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, ksort,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, uasort,           arginfo_array_uXsort,           ZEND_ACC_PUBLIC)
        SPL_ME(Array, uksort,           arginfo_array_uXsort,           ZEND_ACC_PUBLIC)
        SPL_ME(Array, natsort,          arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, natcasesort,      arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, unserialize,      arginfo_array_unserialize,      ZEND_ACC_PUBLIC)
        SPL_ME(Array, serialize,        arginfo_array_void,             ZEND_ACC_PUBLIC)
        /* ArrayObject specific */
        SPL_ME(Array, getIterator,      arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, exchangeArray,    arginfo_array_exchangeArray,    ZEND_ACC_PUBLIC)
        SPL_ME(Array, setIteratorClass, arginfo_array_setIteratorClass, ZEND_ACC_PUBLIC)
        SPL_ME(Array, getIteratorClass, arginfo_array_void,             ZEND_ACC_PUBLIC)
        PHP_FE_END
};

static const zend_function_entry spl_funcs_ArrayIterator[] = {
        SPL_ME(Array, __construct,      arginfo_array___construct,      ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetExists,     arginfo_array_offsetGet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetGet,        arginfo_array_offsetGet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetSet,        arginfo_array_offsetSet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, offsetUnset,      arginfo_array_offsetGet,        ZEND_ACC_PUBLIC)
        SPL_ME(Array, append,           arginfo_array_append,           ZEND_ACC_PUBLIC)
        SPL_ME(Array, getArrayCopy,     arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, count,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, getFlags,         arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, setFlags,         arginfo_array_setFlags,         ZEND_ACC_PUBLIC)
        SPL_ME(Array, asort,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, ksort,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, uasort,           arginfo_array_uXsort,           ZEND_ACC_PUBLIC)
        SPL_ME(Array, uksort,           arginfo_array_uXsort,           ZEND_ACC_PUBLIC)
        SPL_ME(Array, natsort,          arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, natcasesort,      arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, unserialize,      arginfo_array_unserialize,      ZEND_ACC_PUBLIC)
        SPL_ME(Array, serialize,        arginfo_array_void,             ZEND_ACC_PUBLIC)
        /* ArrayIterator specific */
        SPL_ME(Array, rewind,           arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, current,          arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, key,              arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, next,             arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, valid,            arginfo_array_void,             ZEND_ACC_PUBLIC)
        SPL_ME(Array, seek,             arginfo_array_seek,             ZEND_ACC_PUBLIC)
        PHP_FE_END
};

static const zend_function_entry spl_funcs_RecursiveArrayIterator[] = {
        SPL_ME(Array, hasChildren,   arginfo_array_void, ZEND_ACC_PUBLIC)
        SPL_ME(Array, getChildren,   arginfo_array_void, ZEND_ACC_PUBLIC)
        PHP_FE_END
};
/* }}} */

/* {{{ PHP_MINIT_FUNCTION(spl_array) */
PHP_MINIT_FUNCTION(spl_array)
{
        REGISTER_SPL_STD_CLASS_EX(ArrayObject, spl_array_object_new, spl_funcs_ArrayObject);
        REGISTER_SPL_IMPLEMENTS(ArrayObject, Aggregate);
        REGISTER_SPL_IMPLEMENTS(ArrayObject, ArrayAccess);
        REGISTER_SPL_IMPLEMENTS(ArrayObject, Serializable);
        REGISTER_SPL_IMPLEMENTS(ArrayObject, Countable);
        memcpy(&spl_handler_ArrayObject, zend_get_std_object_handlers(), sizeof(zend_object_handlers));

        spl_handler_ArrayObject.clone_obj = spl_array_object_clone;
        spl_handler_ArrayObject.read_dimension = spl_array_read_dimension;
        spl_handler_ArrayObject.write_dimension = spl_array_write_dimension;
        spl_handler_ArrayObject.unset_dimension = spl_array_unset_dimension;
        spl_handler_ArrayObject.has_dimension = spl_array_has_dimension;
        spl_handler_ArrayObject.count_elements = spl_array_object_count_elements;

        spl_handler_ArrayObject.get_properties = spl_array_get_properties;
        spl_handler_ArrayObject.get_debug_info = spl_array_get_debug_info;
        spl_handler_ArrayObject.read_property = spl_array_read_property;
        spl_handler_ArrayObject.write_property = spl_array_write_property;
        spl_handler_ArrayObject.get_property_ptr_ptr = spl_array_get_property_ptr_ptr;
        spl_handler_ArrayObject.has_property = spl_array_has_property;
        spl_handler_ArrayObject.unset_property = spl_array_unset_property;

        spl_handler_ArrayObject.compare_objects = spl_array_compare_objects;

        REGISTER_SPL_STD_CLASS_EX(ArrayIterator, spl_array_object_new, spl_funcs_ArrayIterator);
        REGISTER_SPL_IMPLEMENTS(ArrayIterator, Iterator);
        REGISTER_SPL_IMPLEMENTS(ArrayIterator, ArrayAccess);
        REGISTER_SPL_IMPLEMENTS(ArrayIterator, SeekableIterator);
        REGISTER_SPL_IMPLEMENTS(ArrayIterator, Serializable);
        REGISTER_SPL_IMPLEMENTS(ArrayIterator, Countable);
        memcpy(&spl_handler_ArrayIterator, &spl_handler_ArrayObject, sizeof(zend_object_handlers));
        spl_ce_ArrayIterator->get_iterator = spl_array_get_iterator;
        
        REGISTER_SPL_SUB_CLASS_EX(RecursiveArrayIterator, ArrayIterator, spl_array_object_new, spl_funcs_RecursiveArrayIterator);
        REGISTER_SPL_IMPLEMENTS(RecursiveArrayIterator, RecursiveIterator);
        spl_ce_RecursiveArrayIterator->get_iterator = spl_array_get_iterator;

        REGISTER_SPL_CLASS_CONST_LONG(ArrayObject,   "STD_PROP_LIST",    SPL_ARRAY_STD_PROP_LIST);
        REGISTER_SPL_CLASS_CONST_LONG(ArrayObject,   "ARRAY_AS_PROPS",   SPL_ARRAY_ARRAY_AS_PROPS);

        REGISTER_SPL_CLASS_CONST_LONG(ArrayIterator, "STD_PROP_LIST",    SPL_ARRAY_STD_PROP_LIST);
        REGISTER_SPL_CLASS_CONST_LONG(ArrayIterator, "ARRAY_AS_PROPS",   SPL_ARRAY_ARRAY_AS_PROPS);

        REGISTER_SPL_CLASS_CONST_LONG(RecursiveArrayIterator, "CHILD_ARRAYS_ONLY", SPL_ARRAY_CHILD_ARRAYS_ONLY);

        return SUCCESS;
}
/* }}} */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: fdm=marker
 * vim: noet sw=4 ts=4
 */

/* [<][>][^][v][top][bottom][index][help] */