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/* +----------------------------------------------------------------------+ | PHP Version 5 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2016 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: Jani Lehtimäki <jkl@njet.net> | | Thies C. Arntzen <thies@thieso.net> | | Sascha Schumann <sascha@schumann.cx> | +----------------------------------------------------------------------+ */ /* $Id$ */ /* {{{ includes */ #include <stdio.h> #include <stdlib.h> #include <errno.h> #include "php.h" #include "php_string.h" #include "php_var.h" #include "php_smart_str.h" #include "basic_functions.h" #include "php_incomplete_class.h" #define COMMON (Z_ISREF_PP(struc) ? "&" : "") /* }}} */ static int php_array_element_dump(zval **zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ { int level; level = va_arg(args, int); if (hash_key->nKeyLength == 0) { /* numeric key */ php_printf("%*c[%ld]=>\n", level + 1, ' ', hash_key->h); } else { /* string key */ php_printf("%*c[\"", level + 1, ' '); PHPWRITE(hash_key->arKey, hash_key->nKeyLength - 1); php_printf("\"]=>\n"); } php_var_dump(zv, level + 2 TSRMLS_CC); return 0; } /* }}} */ static int php_object_property_dump(zval **zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ { int level; const char *prop_name, *class_name; level = va_arg(args, int); if (hash_key->nKeyLength == 0) { /* numeric key */ php_printf("%*c[%ld]=>\n", level + 1, ' ', hash_key->h); } else { /* string key */ int unmangle = zend_unmangle_property_name(hash_key->arKey, hash_key->nKeyLength - 1, &class_name, &prop_name); php_printf("%*c[", level + 1, ' '); if (class_name && unmangle == SUCCESS) { if (class_name[0] == '*') { php_printf("\"%s\":protected", prop_name); } else { php_printf("\"%s\":\"%s\":private", prop_name, class_name); } } else { php_printf("\""); PHPWRITE(hash_key->arKey, hash_key->nKeyLength - 1); php_printf("\""); } ZEND_PUTS("]=>\n"); } php_var_dump(zv, level + 2 TSRMLS_CC); return 0; } /* }}} */ PHPAPI void php_var_dump(zval **struc, int level TSRMLS_DC) /* {{{ */ { HashTable *myht; const char *class_name; zend_uint class_name_len; int (*php_element_dump_func)(zval** TSRMLS_DC, int, va_list, zend_hash_key*); int is_temp; if (level > 1) { php_printf("%*c", level - 1, ' '); } switch (Z_TYPE_PP(struc)) { case IS_BOOL: php_printf("%sbool(%s)\n", COMMON, Z_LVAL_PP(struc) ? "true" : "false"); break; case IS_NULL: php_printf("%sNULL\n", COMMON); break; case IS_LONG: php_printf("%sint(%ld)\n", COMMON, Z_LVAL_PP(struc)); break; case IS_DOUBLE: php_printf("%sfloat(%.*G)\n", COMMON, (int) EG(precision), Z_DVAL_PP(struc)); break; case IS_STRING: php_printf("%sstring(%d) \"", COMMON, Z_STRLEN_PP(struc)); PHPWRITE(Z_STRVAL_PP(struc), Z_STRLEN_PP(struc)); PUTS("\"\n"); break; case IS_ARRAY: myht = Z_ARRVAL_PP(struc); if (++myht->nApplyCount > 1) { PUTS("*RECURSION*\n"); --myht->nApplyCount; return; } php_printf("%sarray(%d) {\n", COMMON, zend_hash_num_elements(myht)); php_element_dump_func = php_array_element_dump; is_temp = 0; goto head_done; case IS_OBJECT: myht = Z_OBJDEBUG_PP(struc, is_temp); if (myht && ++myht->nApplyCount > 1) { PUTS("*RECURSION*\n"); --myht->nApplyCount; return; } if (Z_OBJ_HANDLER(**struc, get_class_name)) { Z_OBJ_HANDLER(**struc, get_class_name)(*struc, &class_name, &class_name_len, 0 TSRMLS_CC); php_printf("%sobject(%s)#%d (%d) {\n", COMMON, class_name, Z_OBJ_HANDLE_PP(struc), myht ? zend_hash_num_elements(myht) : 0); efree((char*)class_name); } else { php_printf("%sobject(unknown class)#%d (%d) {\n", COMMON, Z_OBJ_HANDLE_PP(struc), myht ? zend_hash_num_elements(myht) : 0); } php_element_dump_func = php_object_property_dump; head_done: if (myht) { zend_hash_apply_with_arguments(myht TSRMLS_CC, (apply_func_args_t) php_element_dump_func, 1, level); --myht->nApplyCount; if (is_temp) { zend_hash_destroy(myht); efree(myht); } } if (level > 1) { php_printf("%*c", level-1, ' '); } PUTS("}\n"); break; case IS_RESOURCE: { const char *type_name = zend_rsrc_list_get_rsrc_type(Z_LVAL_PP(struc) TSRMLS_CC); php_printf("%sresource(%ld) of type (%s)\n", COMMON, Z_LVAL_PP(struc), type_name ? type_name : "Unknown"); break; } default: php_printf("%sUNKNOWN:0\n", COMMON); break; } } /* }}} */ /* {{{ proto void var_dump(mixed var) Dumps a string representation of variable to output */ PHP_FUNCTION(var_dump) { zval ***args; int argc; int i; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "+", &args, &argc) == FAILURE) { return; } for (i = 0; i < argc; i++) { php_var_dump(args[i], 1 TSRMLS_CC); } efree(args); } /* }}} */ static int zval_array_element_dump(zval **zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ { int level; level = va_arg(args, int); if (hash_key->nKeyLength == 0) { /* numeric key */ php_printf("%*c[%ld]=>\n", level + 1, ' ', hash_key->h); } else { /* string key */ /* XXX: perphaps when we are inside the class we should permit access to * private & protected values */ if (va_arg(args, int) && hash_key->arKey[0] == '\0') { return 0; } php_printf("%*c[\"", level + 1, ' '); PHPWRITE(hash_key->arKey, hash_key->nKeyLength - 1); php_printf("\"]=>\n"); } php_debug_zval_dump(zv, level + 2 TSRMLS_CC); return 0; } /* }}} */ static int zval_object_property_dump(zval **zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ { int level; const char *prop_name, *class_name; level = va_arg(args, int); if (hash_key->nKeyLength == 0) { /* numeric key */ php_printf("%*c[%ld]=>\n", level + 1, ' ', hash_key->h); } else { /* string key */ zend_unmangle_property_name(hash_key->arKey, hash_key->nKeyLength - 1, &class_name, &prop_name); php_printf("%*c[", level + 1, ' '); if (class_name) { if (class_name[0] == '*') { php_printf("\"%s\":protected", prop_name); } else { php_printf("\"%s\":\"%s\":private", prop_name, class_name); } } else { php_printf("\"%s\"", prop_name); } ZEND_PUTS("]=>\n"); } php_debug_zval_dump(zv, level + 2 TSRMLS_CC); return 0; } /* }}} */ PHPAPI void php_debug_zval_dump(zval **struc, int level TSRMLS_DC) /* {{{ */ { HashTable *myht = NULL; const char *class_name; zend_uint class_name_len; int (*zval_element_dump_func)(zval** TSRMLS_DC, int, va_list, zend_hash_key*); int is_temp = 0; if (level > 1) { php_printf("%*c", level - 1, ' '); } switch (Z_TYPE_PP(struc)) { case IS_BOOL: php_printf("%sbool(%s) refcount(%u)\n", COMMON, Z_LVAL_PP(struc)?"true":"false", Z_REFCOUNT_PP(struc)); break; case IS_NULL: php_printf("%sNULL refcount(%u)\n", COMMON, Z_REFCOUNT_PP(struc)); break; case IS_LONG: php_printf("%slong(%ld) refcount(%u)\n", COMMON, Z_LVAL_PP(struc), Z_REFCOUNT_PP(struc)); break; case IS_DOUBLE: php_printf("%sdouble(%.*G) refcount(%u)\n", COMMON, (int) EG(precision), Z_DVAL_PP(struc), Z_REFCOUNT_PP(struc)); break; case IS_STRING: php_printf("%sstring(%d) \"", COMMON, Z_STRLEN_PP(struc)); PHPWRITE(Z_STRVAL_PP(struc), Z_STRLEN_PP(struc)); php_printf("\" refcount(%u)\n", Z_REFCOUNT_PP(struc)); break; case IS_ARRAY: myht = Z_ARRVAL_PP(struc); if (myht->nApplyCount > 1) { PUTS("*RECURSION*\n"); return; } php_printf("%sarray(%d) refcount(%u){\n", COMMON, zend_hash_num_elements(myht), Z_REFCOUNT_PP(struc)); zval_element_dump_func = zval_array_element_dump; goto head_done; case IS_OBJECT: myht = Z_OBJDEBUG_PP(struc, is_temp); if (myht && myht->nApplyCount > 1) { PUTS("*RECURSION*\n"); return; } Z_OBJ_HANDLER_PP(struc, get_class_name)(*struc, &class_name, &class_name_len, 0 TSRMLS_CC); php_printf("%sobject(%s)#%d (%d) refcount(%u){\n", COMMON, class_name, Z_OBJ_HANDLE_PP(struc), myht ? zend_hash_num_elements(myht) : 0, Z_REFCOUNT_PP(struc)); efree((char*)class_name); zval_element_dump_func = zval_object_property_dump; head_done: if (myht) { zend_hash_apply_with_arguments(myht TSRMLS_CC, (apply_func_args_t) zval_element_dump_func, 1, level, (Z_TYPE_PP(struc) == IS_ARRAY ? 0 : 1)); if (is_temp) { zend_hash_destroy(myht); efree(myht); } } if (level > 1) { php_printf("%*c", level - 1, ' '); } PUTS("}\n"); break; case IS_RESOURCE: { const char *type_name = zend_rsrc_list_get_rsrc_type(Z_LVAL_PP(struc) TSRMLS_CC); php_printf("%sresource(%ld) of type (%s) refcount(%u)\n", COMMON, Z_LVAL_PP(struc), type_name ? type_name : "Unknown", Z_REFCOUNT_PP(struc)); break; } default: php_printf("%sUNKNOWN:0\n", COMMON); break; } } /* }}} */ /* {{{ proto void debug_zval_dump(mixed var) Dumps a string representation of an internal zend value to output. */ PHP_FUNCTION(debug_zval_dump) { zval ***args; int argc; int i; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "+", &args, &argc) == FAILURE) { return; } for (i = 0; i < argc; i++) { php_debug_zval_dump(args[i], 1 TSRMLS_CC); } efree(args); } /* }}} */ #define buffer_append_spaces(buf, num_spaces) \ do { \ char *tmp_spaces; \ int tmp_spaces_len; \ tmp_spaces_len = spprintf(&tmp_spaces, 0,"%*c", num_spaces, ' '); \ smart_str_appendl(buf, tmp_spaces, tmp_spaces_len); \ efree(tmp_spaces); \ } while(0); static int php_array_element_export(zval **zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ { int level; smart_str *buf; level = va_arg(args, int); buf = va_arg(args, smart_str *); if (hash_key->nKeyLength == 0) { /* numeric key */ buffer_append_spaces(buf, level+1); smart_str_append_long(buf, (long) hash_key->h); smart_str_appendl(buf, " => ", 4); } else { /* string key */ char *key, *tmp_str; int key_len, tmp_len; key = php_addcslashes(hash_key->arKey, hash_key->nKeyLength - 1, &key_len, 0, "'\\", 2 TSRMLS_CC); tmp_str = php_str_to_str_ex(key, key_len, "\0", 1, "' . \"\\0\" . '", 12, &tmp_len, 0, NULL); buffer_append_spaces(buf, level + 1); smart_str_appendc(buf, '\''); smart_str_appendl(buf, tmp_str, tmp_len); smart_str_appendl(buf, "' => ", 5); efree(key); efree(tmp_str); } php_var_export_ex(zv, level + 2, buf TSRMLS_CC); smart_str_appendc(buf, ','); smart_str_appendc(buf, '\n'); return 0; } /* }}} */ static int php_object_element_export(zval **zv TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ { int level; smart_str *buf; level = va_arg(args, int); buf = va_arg(args, smart_str *); buffer_append_spaces(buf, level + 2); if (hash_key->nKeyLength != 0) { const char *class_name; /* ignored, but must be passed to unmangle */ const char *pname; char *pname_esc; int pname_esc_len; zend_unmangle_property_name(hash_key->arKey, hash_key->nKeyLength - 1, &class_name, &pname); pname_esc = php_addcslashes(pname, strlen(pname), &pname_esc_len, 0, "'\\", 2 TSRMLS_CC); smart_str_appendc(buf, '\''); smart_str_appendl(buf, pname_esc, pname_esc_len); smart_str_appendc(buf, '\''); efree(pname_esc); } else { smart_str_append_long(buf, (long) hash_key->h); } smart_str_appendl(buf, " => ", 4); php_var_export_ex(zv, level + 2, buf TSRMLS_CC); smart_str_appendc(buf, ','); smart_str_appendc(buf, '\n'); return 0; } /* }}} */ PHPAPI void php_var_export_ex(zval **struc, int level, smart_str *buf TSRMLS_DC) /* {{{ */ { HashTable *myht; char *tmp_str, *tmp_str2; int tmp_len, tmp_len2; const char *class_name; zend_uint class_name_len; switch (Z_TYPE_PP(struc)) { case IS_BOOL: if (Z_LVAL_PP(struc)) { smart_str_appendl(buf, "true", 4); } else { smart_str_appendl(buf, "false", 5); } break; case IS_NULL: smart_str_appendl(buf, "NULL", 4); break; case IS_LONG: smart_str_append_long(buf, Z_LVAL_PP(struc)); break; case IS_DOUBLE: tmp_len = spprintf(&tmp_str, 0,"%.*H", PG(serialize_precision), Z_DVAL_PP(struc)); smart_str_appendl(buf, tmp_str, tmp_len); efree(tmp_str); break; case IS_STRING: tmp_str = php_addcslashes(Z_STRVAL_PP(struc), Z_STRLEN_PP(struc), &tmp_len, 0, "'\\", 2 TSRMLS_CC); tmp_str2 = php_str_to_str_ex(tmp_str, tmp_len, "\0", 1, "' . \"\\0\" . '", 12, &tmp_len2, 0, NULL); smart_str_appendc(buf, '\''); smart_str_appendl(buf, tmp_str2, tmp_len2); smart_str_appendc(buf, '\''); efree(tmp_str2); efree(tmp_str); break; case IS_ARRAY: myht = Z_ARRVAL_PP(struc); if (myht->nApplyCount > 0){ smart_str_appendl(buf, "NULL", 4); zend_error(E_WARNING, "var_export does not handle circular references"); return; } if (level > 1) { smart_str_appendc(buf, '\n'); buffer_append_spaces(buf, level - 1); } smart_str_appendl(buf, "array (\n", 8); zend_hash_apply_with_arguments(myht TSRMLS_CC, (apply_func_args_t) php_array_element_export, 2, level, buf); if (level > 1) { buffer_append_spaces(buf, level - 1); } smart_str_appendc(buf, ')'); break; case IS_OBJECT: myht = Z_OBJPROP_PP(struc); if(myht && myht->nApplyCount > 0){ smart_str_appendl(buf, "NULL", 4); zend_error(E_WARNING, "var_export does not handle circular references"); return; } if (level > 1) { smart_str_appendc(buf, '\n'); buffer_append_spaces(buf, level - 1); } Z_OBJ_HANDLER(**struc, get_class_name)(*struc, &class_name, &class_name_len, 0 TSRMLS_CC); smart_str_appendl(buf, class_name, class_name_len); smart_str_appendl(buf, "::__set_state(array(\n", 21); efree((char*)class_name); if (myht) { zend_hash_apply_with_arguments(myht TSRMLS_CC, (apply_func_args_t) php_object_element_export, 1, level, buf); } if (level > 1) { buffer_append_spaces(buf, level - 1); } smart_str_appendl(buf, "))", 2); break; default: smart_str_appendl(buf, "NULL", 4); break; } } /* }}} */ /* FOR BC reasons, this will always perform and then print */ PHPAPI void php_var_export(zval **struc, int level TSRMLS_DC) /* {{{ */ { smart_str buf = {0}; php_var_export_ex(struc, level, &buf TSRMLS_CC); smart_str_0 (&buf); PHPWRITE(buf.c, buf.len); smart_str_free(&buf); } /* }}} */ /* {{{ proto mixed var_export(mixed var [, bool return]) Outputs or returns a string representation of a variable */ PHP_FUNCTION(var_export) { zval *var; zend_bool return_output = 0; smart_str buf = {0}; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|b", &var, &return_output) == FAILURE) { return; } php_var_export_ex(&var, 1, &buf TSRMLS_CC); smart_str_0 (&buf); if (return_output) { RETVAL_STRINGL(buf.c, buf.len, 1); } else { PHPWRITE(buf.c, buf.len); } smart_str_free(&buf); } /* }}} */ static void php_var_serialize_intern(smart_str *buf, zval *struc, HashTable *var_hash TSRMLS_DC); static inline int php_add_var_hash(HashTable *var_hash, zval *var, void *var_old TSRMLS_DC) /* {{{ */ { ulong var_no; char id[32], *p; register int len; if ((Z_TYPE_P(var) == IS_OBJECT) && Z_OBJ_HT_P(var)->get_class_entry) { p = smart_str_print_long(id + sizeof(id) - 1, (long) zend_objects_get_address(var TSRMLS_CC)); *(--p) = 'O'; len = id + sizeof(id) - 1 - p; } else { p = smart_str_print_long(id + sizeof(id) - 1, (long) var); len = id + sizeof(id) - 1 - p; } if (var_old && zend_hash_find(var_hash, p, len, var_old) == SUCCESS) { if (!Z_ISREF_P(var)) { /* we still need to bump up the counter, since non-refs will * be counted separately by unserializer */ var_no = -1; zend_hash_next_index_insert(var_hash, &var_no, sizeof(var_no), NULL); } #if 0 fprintf(stderr, "- had var (%d): %lu\n", Z_TYPE_P(var), **(ulong**)var_old); #endif return FAILURE; } /* +1 because otherwise hash will think we are trying to store NULL pointer */ var_no = zend_hash_num_elements(var_hash) + 1; zend_hash_add(var_hash, p, len, &var_no, sizeof(var_no), NULL); #if 0 fprintf(stderr, "+ add var (%d): %lu\n", Z_TYPE_P(var), var_no); #endif return SUCCESS; } /* }}} */ static inline void php_var_serialize_long(smart_str *buf, long val) /* {{{ */ { smart_str_appendl(buf, "i:", 2); smart_str_append_long(buf, val); smart_str_appendc(buf, ';'); } /* }}} */ static inline void php_var_serialize_string(smart_str *buf, char *str, int len) /* {{{ */ { smart_str_appendl(buf, "s:", 2); smart_str_append_long(buf, len); smart_str_appendl(buf, ":\"", 2); smart_str_appendl(buf, str, len); smart_str_appendl(buf, "\";", 2); } /* }}} */ static inline zend_bool php_var_serialize_class_name(smart_str *buf, zval *struc TSRMLS_DC) /* {{{ */ { PHP_CLASS_ATTRIBUTES; PHP_SET_CLASS_ATTRIBUTES(struc); smart_str_appendl(buf, "O:", 2); smart_str_append_long(buf, (int)name_len); smart_str_appendl(buf, ":\"", 2); smart_str_appendl(buf, class_name, name_len); smart_str_appendl(buf, "\":", 2); PHP_CLEANUP_CLASS_ATTRIBUTES(); return incomplete_class; } /* }}} */ static void php_var_serialize_class(smart_str *buf, zval *struc, zval *retval_ptr, HashTable *var_hash TSRMLS_DC) /* {{{ */ { int count; zend_bool incomplete_class; incomplete_class = php_var_serialize_class_name(buf, struc TSRMLS_CC); /* count after serializing name, since php_var_serialize_class_name * changes the count if the variable is incomplete class */ count = zend_hash_num_elements(HASH_OF(retval_ptr)); if (incomplete_class) { --count; } smart_str_append_long(buf, count); smart_str_appendl(buf, ":{", 2); if (count > 0) { char *key; zval **d, **name; ulong index; HashPosition pos; int i; zval nval, *nvalp; HashTable *propers; ZVAL_NULL(&nval); nvalp = &nval; zend_hash_internal_pointer_reset_ex(HASH_OF(retval_ptr), &pos); for (;; zend_hash_move_forward_ex(HASH_OF(retval_ptr), &pos)) { i = zend_hash_get_current_key_ex(HASH_OF(retval_ptr), &key, NULL, &index, 0, &pos); if (i == HASH_KEY_NON_EXISTENT) { break; } if (incomplete_class && strcmp(key, MAGIC_MEMBER) == 0) { continue; } zend_hash_get_current_data_ex(HASH_OF(retval_ptr), (void **) &name, &pos); if (Z_TYPE_PP(name) != IS_STRING) { php_error_docref(NULL TSRMLS_CC, E_NOTICE, "__sleep should return an array only containing the names of instance-variables to serialize."); convert_to_string(*name); } propers = Z_OBJPROP_P(struc); if (zend_hash_find(propers, Z_STRVAL_PP(name), Z_STRLEN_PP(name) + 1, (void *) &d) == SUCCESS) { php_var_serialize_string(buf, Z_STRVAL_PP(name), Z_STRLEN_PP(name)); php_var_serialize_intern(buf, *d, var_hash TSRMLS_CC); } else { zend_class_entry *ce; ce = zend_get_class_entry(struc TSRMLS_CC); if (ce) { char *prot_name, *priv_name; int prop_name_length; do { zend_mangle_property_name(&priv_name, &prop_name_length, ce->name, ce->name_length, Z_STRVAL_PP(name), Z_STRLEN_PP(name), ce->type & ZEND_INTERNAL_CLASS); if (zend_hash_find(propers, priv_name, prop_name_length + 1, (void *) &d) == SUCCESS) { php_var_serialize_string(buf, priv_name, prop_name_length); pefree(priv_name, ce->type & ZEND_INTERNAL_CLASS); php_var_serialize_intern(buf, *d, var_hash TSRMLS_CC); break; } pefree(priv_name, ce->type & ZEND_INTERNAL_CLASS); zend_mangle_property_name(&prot_name, &prop_name_length, "*", 1, Z_STRVAL_PP(name), Z_STRLEN_PP(name), ce->type & ZEND_INTERNAL_CLASS); if (zend_hash_find(propers, prot_name, prop_name_length + 1, (void *) &d) == SUCCESS) { php_var_serialize_string(buf, prot_name, prop_name_length); pefree(prot_name, ce->type & ZEND_INTERNAL_CLASS); php_var_serialize_intern(buf, *d, var_hash TSRMLS_CC); break; } pefree(prot_name, ce->type & ZEND_INTERNAL_CLASS); php_var_serialize_string(buf, Z_STRVAL_PP(name), Z_STRLEN_PP(name)); php_var_serialize_intern(buf, nvalp, var_hash TSRMLS_CC); php_error_docref(NULL TSRMLS_CC, E_NOTICE, "\"%s\" returned as member variable from __sleep() but does not exist", Z_STRVAL_PP(name)); } while (0); } else { php_var_serialize_string(buf, Z_STRVAL_PP(name), Z_STRLEN_PP(name)); php_var_serialize_intern(buf, nvalp, var_hash TSRMLS_CC); } } } } smart_str_appendc(buf, '}'); } /* }}} */ static void php_var_serialize_intern(smart_str *buf, zval *struc, HashTable *var_hash TSRMLS_DC) /* {{{ */ { int i; ulong *var_already; HashTable *myht; if (EG(exception)) { return; } if (var_hash && php_add_var_hash(var_hash, struc, (void *) &var_already TSRMLS_CC) == FAILURE) { if (Z_ISREF_P(struc)) { smart_str_appendl(buf, "R:", 2); smart_str_append_long(buf, (long)*var_already); smart_str_appendc(buf, ';'); return; } else if (Z_TYPE_P(struc) == IS_OBJECT) { smart_str_appendl(buf, "r:", 2); smart_str_append_long(buf, (long)*var_already); smart_str_appendc(buf, ';'); return; } } switch (Z_TYPE_P(struc)) { case IS_BOOL: smart_str_appendl(buf, "b:", 2); smart_str_append_long(buf, Z_LVAL_P(struc)); smart_str_appendc(buf, ';'); return; case IS_NULL: smart_str_appendl(buf, "N;", 2); return; case IS_LONG: php_var_serialize_long(buf, Z_LVAL_P(struc)); return; case IS_DOUBLE: { char *s; smart_str_appendl(buf, "d:", 2); s = (char *) safe_emalloc(PG(serialize_precision), 1, MAX_LENGTH_OF_DOUBLE + 1); php_gcvt(Z_DVAL_P(struc), PG(serialize_precision), '.', 'E', s); smart_str_appends(buf, s); smart_str_appendc(buf, ';'); efree(s); return; } case IS_STRING: php_var_serialize_string(buf, Z_STRVAL_P(struc), Z_STRLEN_P(struc)); return; case IS_OBJECT: { zval *retval_ptr = NULL; zval fname; int res; zend_class_entry *ce = NULL; if (Z_OBJ_HT_P(struc)->get_class_entry) { ce = Z_OBJCE_P(struc); } if (ce && ce->serialize != NULL) { /* has custom handler */ unsigned char *serialized_data = NULL; zend_uint serialized_length; if (ce->serialize(struc, &serialized_data, &serialized_length, (zend_serialize_data *)var_hash TSRMLS_CC) == SUCCESS) { smart_str_appendl(buf, "C:", 2); smart_str_append_long(buf, (int)Z_OBJCE_P(struc)->name_length); smart_str_appendl(buf, ":\"", 2); smart_str_appendl(buf, Z_OBJCE_P(struc)->name, Z_OBJCE_P(struc)->name_length); smart_str_appendl(buf, "\":", 2); smart_str_append_long(buf, (int)serialized_length); smart_str_appendl(buf, ":{", 2); smart_str_appendl(buf, serialized_data, serialized_length); smart_str_appendc(buf, '}'); } else { smart_str_appendl(buf, "N;", 2); } if (serialized_data) { efree(serialized_data); } return; } if (ce && ce != PHP_IC_ENTRY && zend_hash_exists(&ce->function_table, "__sleep", sizeof("__sleep"))) { INIT_PZVAL(&fname); ZVAL_STRINGL(&fname, "__sleep", sizeof("__sleep") - 1, 0); BG(serialize_lock)++; res = call_user_function_ex(CG(function_table), &struc, &fname, &retval_ptr, 0, 0, 1, NULL TSRMLS_CC); BG(serialize_lock)--; if (EG(exception)) { if (retval_ptr) { zval_ptr_dtor(&retval_ptr); } return; } if (res == SUCCESS) { if (retval_ptr) { if (HASH_OF(retval_ptr)) { php_var_serialize_class(buf, struc, retval_ptr, var_hash TSRMLS_CC); } else { php_error_docref(NULL TSRMLS_CC, E_NOTICE, "__sleep should return an array only containing the names of instance-variables to serialize"); /* we should still add element even if it's not OK, * since we already wrote the length of the array before */ smart_str_appendl(buf,"N;", 2); } zval_ptr_dtor(&retval_ptr); } return; } } if (retval_ptr) { zval_ptr_dtor(&retval_ptr); } /* fall-through */ } case IS_ARRAY: { zend_bool incomplete_class = 0; if (Z_TYPE_P(struc) == IS_ARRAY) { smart_str_appendl(buf, "a:", 2); myht = HASH_OF(struc); } else { incomplete_class = php_var_serialize_class_name(buf, struc TSRMLS_CC); myht = Z_OBJPROP_P(struc); } /* count after serializing name, since php_var_serialize_class_name * changes the count if the variable is incomplete class */ i = myht ? zend_hash_num_elements(myht) : 0; if (i > 0 && incomplete_class) { --i; } smart_str_append_long(buf, i); smart_str_appendl(buf, ":{", 2); if (i > 0) { char *key; zval **data; ulong index; uint key_len; HashPosition pos; zend_hash_internal_pointer_reset_ex(myht, &pos); for (;; zend_hash_move_forward_ex(myht, &pos)) { i = zend_hash_get_current_key_ex(myht, &key, &key_len, &index, 0, &pos); if (i == HASH_KEY_NON_EXISTENT) { break; } if (incomplete_class && strcmp(key, MAGIC_MEMBER) == 0) { continue; } switch (i) { case HASH_KEY_IS_LONG: php_var_serialize_long(buf, index); break; case HASH_KEY_IS_STRING: php_var_serialize_string(buf, key, key_len - 1); break; } /* we should still add element even if it's not OK, * since we already wrote the length of the array before */ if (zend_hash_get_current_data_ex(myht, (void **) &data, &pos) != SUCCESS || !data || data == &struc || (Z_TYPE_PP(data) == IS_ARRAY && Z_ARRVAL_PP(data)->nApplyCount > 1) ) { smart_str_appendl(buf, "N;", 2); } else { if (Z_TYPE_PP(data) == IS_ARRAY) { Z_ARRVAL_PP(data)->nApplyCount++; } php_var_serialize_intern(buf, *data, var_hash TSRMLS_CC); if (Z_TYPE_PP(data) == IS_ARRAY) { Z_ARRVAL_PP(data)->nApplyCount--; } } } } smart_str_appendc(buf, '}'); return; } default: smart_str_appendl(buf, "i:0;", 4); return; } } /* }}} */ PHPAPI void php_var_serialize(smart_str *buf, zval **struc, php_serialize_data_t *var_hash TSRMLS_DC) /* {{{ */ { php_var_serialize_intern(buf, *struc, *var_hash TSRMLS_CC); smart_str_0(buf); } /* }}} */ /* {{{ proto string serialize(mixed variable) Returns a string representation of variable (which can later be unserialized) */ PHP_FUNCTION(serialize) { zval **struc; php_serialize_data_t var_hash; smart_str buf = {0}; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &struc) == FAILURE) { return; } Z_TYPE_P(return_value) = IS_STRING; Z_STRVAL_P(return_value) = NULL; Z_STRLEN_P(return_value) = 0; PHP_VAR_SERIALIZE_INIT(var_hash); php_var_serialize(&buf, struc, &var_hash TSRMLS_CC); PHP_VAR_SERIALIZE_DESTROY(var_hash); if (EG(exception)) { smart_str_free(&buf); RETURN_FALSE; } if (buf.c) { RETURN_STRINGL(buf.c, buf.len, 0); } else { RETURN_NULL(); } } /* }}} */ /* {{{ proto mixed unserialize(string variable_representation) Takes a string representation of variable and recreates it */ PHP_FUNCTION(unserialize) { char *buf = NULL; int buf_len; const unsigned char *p; php_unserialize_data_t var_hash; int oldlevel; zval *old_rval = return_value; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &buf, &buf_len) == FAILURE) { RETURN_FALSE; } if (buf_len == 0) { RETURN_FALSE; } p = (const unsigned char*) buf; PHP_VAR_UNSERIALIZE_INIT(var_hash); if (!php_var_unserialize(&return_value, &p, p + buf_len, &var_hash TSRMLS_CC)) { var_push_dtor(&var_hash, &return_value); PHP_VAR_UNSERIALIZE_DESTROY(var_hash); zval_dtor(return_value); if (!EG(exception)) { php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Error at offset %ld of %d bytes", (long)((char*)p - buf), buf_len); } RETURN_FALSE; } if (return_value != old_rval) { /* * Terrible hack due to the fact that executor passes us zval *, * but unserialize with r/R wants to replace it with another zval * */ zval_dtor(old_rval); *old_rval = *return_value; zval_copy_ctor(old_rval); var_push_dtor_no_addref(&var_hash, &return_value); /* FIXME: old_rval is not freed in some scenarios, see bug #70172 var_push_dtor_no_addref(&var_hash, &old_rval); */ } else { var_push_dtor(&var_hash, &return_value); } PHP_VAR_UNSERIALIZE_DESTROY(var_hash); } /* }}} */ /* {{{ proto int memory_get_usage([real_usage]) Returns the allocated by PHP memory */ PHP_FUNCTION(memory_get_usage) { zend_bool real_usage = 0; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &real_usage) == FAILURE) { RETURN_FALSE; } RETURN_LONG(zend_memory_usage(real_usage TSRMLS_CC)); } /* }}} */ /* {{{ proto int memory_get_peak_usage([real_usage]) Returns the peak allocated by PHP memory */ PHP_FUNCTION(memory_get_peak_usage) { zend_bool real_usage = 0; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &real_usage) == FAILURE) { RETURN_FALSE; } RETURN_LONG(zend_memory_peak_usage(real_usage TSRMLS_CC)); } /* }}} */ /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: * vim600: sw=4 ts=4 fdm=marker * vim<600: sw=4 ts=4 */
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