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f0fb480b13
sequence is encountered. This fixes that. Might be worthwhile to merge to 5.3 despite the new constant.
655 lines
15 KiB
C
655 lines
15 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 6 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2009 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Omar Kilani <omar@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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/*
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* UTODO
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* - take a look at json_decode, some weird IS_STRING checks there
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* - expose encode/decode API once that's done
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "php.h"
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#include "php_ini.h"
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#include "ext/standard/info.h"
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#include "ext/standard/php_smart_str.h"
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#include "utf8_to_utf16.h"
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#include "JSON_parser.h"
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#include "php_json.h"
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static PHP_MINFO_FUNCTION(json);
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static PHP_FUNCTION(json_encode);
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static PHP_FUNCTION(json_decode);
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static PHP_FUNCTION(json_last_error);
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static const char digits[] = "0123456789abcdef";
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#define PHP_JSON_HEX_TAG (1<<0)
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#define PHP_JSON_HEX_AMP (1<<1)
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#define PHP_JSON_HEX_APOS (1<<2)
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#define PHP_JSON_HEX_QUOT (1<<3)
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#define PHP_JSON_FORCE_OBJECT (1<<4)
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#define PHP_JSON_OUTPUT_ARRAY 0
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#define PHP_JSON_OUTPUT_OBJECT 1
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ZEND_DECLARE_MODULE_GLOBALS(json)
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/* {{{ arginfo */
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ZEND_BEGIN_ARG_INFO_EX(arginfo_json_encode, 0, 0, 1)
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ZEND_ARG_INFO(0, value)
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ZEND_ARG_INFO(0, options)
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ZEND_END_ARG_INFO()
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ZEND_BEGIN_ARG_INFO_EX(arginfo_json_decode, 0, 0, 1)
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ZEND_ARG_INFO(0, json)
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ZEND_ARG_INFO(0, assoc)
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ZEND_ARG_INFO(0, depth)
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ZEND_END_ARG_INFO()
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ZEND_BEGIN_ARG_INFO(arginfo_json_last_error, 0)
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ZEND_END_ARG_INFO()
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/* }}} */
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/* {{{ json_functions[] */
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static const function_entry json_functions[] = {
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PHP_FE(json_encode, arginfo_json_encode)
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PHP_FE(json_decode, arginfo_json_decode)
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PHP_FE(json_last_error, arginfo_json_last_error)
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{NULL, NULL, NULL}
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};
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/* }}} */
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/* {{{ MINIT */
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static PHP_MINIT_FUNCTION(json)
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{
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REGISTER_LONG_CONSTANT("JSON_HEX_TAG", PHP_JSON_HEX_TAG, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_HEX_AMP", PHP_JSON_HEX_AMP, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_HEX_APOS", PHP_JSON_HEX_APOS, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_HEX_QUOT", PHP_JSON_HEX_QUOT, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_FORCE_OBJECT", PHP_JSON_FORCE_OBJECT, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_ERROR_NONE", PHP_JSON_ERROR_NONE, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_ERROR_DEPTH", PHP_JSON_ERROR_DEPTH, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_ERROR_STATE_MISMATCH", PHP_JSON_ERROR_STATE_MISMATCH, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_ERROR_CTRL_CHAR", PHP_JSON_ERROR_CTRL_CHAR, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_ERROR_SYNTAX", PHP_JSON_ERROR_SYNTAX, CONST_CS | CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("JSON_ERROR_UTF8", PHP_JSON_ERROR_UTF8, CONST_CS | CONST_PERSISTENT);
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return SUCCESS;
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}
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/* }}} */
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/* {{{ PHP_GINIT_FUNCTION
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*/
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static PHP_GINIT_FUNCTION(json)
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{
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json_globals->error_code = 0;
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}
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/* }}} */
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/* {{{ json_module_entry
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*/
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zend_module_entry json_module_entry = {
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STANDARD_MODULE_HEADER,
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"json",
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json_functions,
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PHP_MINIT(json),
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NULL,
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NULL,
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NULL,
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PHP_MINFO(json),
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PHP_JSON_VERSION,
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PHP_MODULE_GLOBALS(json),
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PHP_GINIT(json),
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NULL,
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NULL,
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STANDARD_MODULE_PROPERTIES_EX
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};
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/* }}} */
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#ifdef COMPILE_DL_JSON
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ZEND_GET_MODULE(json)
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#endif
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/* {{{ PHP_MINFO_FUNCTION
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*/
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static PHP_MINFO_FUNCTION(json)
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{
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php_info_print_table_start();
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php_info_print_table_row(2, "json support", "enabled");
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php_info_print_table_row(2, "json version", PHP_JSON_VERSION);
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php_info_print_table_end();
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}
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/* }}} */
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static void json_encode_r(smart_str *buf, zval *val, int options TSRMLS_DC);
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static void json_escape_string(smart_str *buf, zstr s, int len, zend_uchar type, int options TSRMLS_DC);
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static int json_determine_array_type(zval **val TSRMLS_DC) /* {{{ */
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{
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int i;
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HashTable *myht = HASH_OF(*val);
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i = myht ? zend_hash_num_elements(myht) : 0;
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if (i > 0) {
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zstr key;
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ulong index, idx;
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uint key_len;
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HashPosition pos;
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zend_hash_internal_pointer_reset_ex(myht, &pos);
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idx = 0;
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for (;; zend_hash_move_forward_ex(myht, &pos)) {
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i = zend_hash_get_current_key_ex(myht, &key, &key_len, &index, 0, &pos);
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if (i == HASH_KEY_NON_EXISTANT)
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break;
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if (i == HASH_KEY_IS_STRING || i == HASH_KEY_IS_UNICODE) {
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return 1;
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} else {
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if (index != idx) {
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return 1;
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}
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}
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idx++;
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}
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}
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return PHP_JSON_OUTPUT_ARRAY;
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}
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/* }}} */
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static void json_encode_array(smart_str *buf, zval **val, int options TSRMLS_DC) /* {{{ */
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{
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int i, r;
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HashTable *myht;
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if (Z_TYPE_PP(val) == IS_ARRAY) {
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myht = HASH_OF(*val);
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r = (options & PHP_JSON_FORCE_OBJECT) ? PHP_JSON_OUTPUT_OBJECT : json_determine_array_type(val TSRMLS_CC);
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} else {
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myht = Z_OBJPROP_PP(val);
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r = PHP_JSON_OUTPUT_OBJECT;
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}
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if (myht && myht->nApplyCount > 1) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "recursion detected");
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smart_str_appendl(buf, "null", 4);
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return;
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}
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if (r == PHP_JSON_OUTPUT_ARRAY) {
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smart_str_appendc(buf, '[');
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} else {
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smart_str_appendc(buf, '{');
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}
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i = myht ? zend_hash_num_elements(myht) : 0;
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if (i > 0)
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{
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zstr key;
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zval **data;
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ulong index;
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uint key_len;
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HashPosition pos;
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HashTable *tmp_ht;
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int need_comma = 0;
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zend_hash_internal_pointer_reset_ex(myht, &pos);
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for (;; zend_hash_move_forward_ex(myht, &pos)) {
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i = zend_hash_get_current_key_ex(myht, &key, &key_len, &index, 0, &pos);
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if (i == HASH_KEY_NON_EXISTANT)
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break;
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if (zend_hash_get_current_data_ex(myht, (void **) &data, &pos) == SUCCESS) {
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tmp_ht = HASH_OF(*data);
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if (tmp_ht) {
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tmp_ht->nApplyCount++;
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}
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if (r == PHP_JSON_OUTPUT_ARRAY) {
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if (need_comma) {
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smart_str_appendc(buf, ',');
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} else {
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need_comma = 1;
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}
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json_encode_r(buf, *data, options TSRMLS_CC);
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} else if (r == PHP_JSON_OUTPUT_OBJECT) {
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if (i == HASH_KEY_IS_STRING || i == HASH_KEY_IS_UNICODE) {
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if (key.s[0] == '\0' && Z_TYPE_PP(val) == IS_OBJECT) {
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/* Skip protected and private members. */
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if (tmp_ht) {
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tmp_ht->nApplyCount--;
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}
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continue;
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}
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if (need_comma) {
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smart_str_appendc(buf, ',');
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} else {
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need_comma = 1;
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}
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json_escape_string(buf, key, key_len - 1, (i == HASH_KEY_IS_UNICODE) ? IS_UNICODE : IS_STRING, options TSRMLS_CC);
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smart_str_appendc(buf, ':');
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json_encode_r(buf, *data, options TSRMLS_CC);
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} else {
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if (need_comma) {
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smart_str_appendc(buf, ',');
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} else {
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need_comma = 1;
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}
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smart_str_appendc(buf, '"');
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smart_str_append_long(buf, (long) index);
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smart_str_appendc(buf, '"');
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smart_str_appendc(buf, ':');
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json_encode_r(buf, *data, options TSRMLS_CC);
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}
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}
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if (tmp_ht) {
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tmp_ht->nApplyCount--;
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}
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}
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}
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}
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if (r == PHP_JSON_OUTPUT_ARRAY) {
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smart_str_appendc(buf, ']');
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} else {
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smart_str_appendc(buf, '}');
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}
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}
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/* }}} */
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#define REVERSE16(us) (((us & 0xf) << 12) | (((us >> 4) & 0xf) << 8) | (((us >> 8) & 0xf) << 4) | ((us >> 12) & 0xf))
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static void json_escape_string(smart_str *buf, zstr s, int len, zend_uchar type, int options TSRMLS_DC) /* {{{ */
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{
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int pos = 0;
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unsigned short us;
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unsigned short *utf16;
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if (len == 0) {
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smart_str_appendl(buf, "\"\"", 2);
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return;
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}
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if (type == IS_UNICODE) {
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utf16 = (unsigned short *) s.u;
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} else {
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utf16 = (unsigned short *) safe_emalloc(len, sizeof(unsigned short), 0);
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len = utf8_to_utf16(utf16, s.s, len);
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if (len <= 0) {
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if (utf16) {
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efree(utf16);
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}
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if (len < 0) {
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JSON_G(error_code) = PHP_JSON_ERROR_UTF8;
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if (!PG(display_errors)) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid UTF-8 sequence in argument");
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}
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smart_str_appendl(buf, "null", 4);
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} else {
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smart_str_appendl(buf, "\"\"", 2);
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}
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return;
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}
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}
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smart_str_appendc(buf, '"');
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while (pos < len)
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{
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us = utf16[pos++];
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switch (us)
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{
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case '"':
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if (options & PHP_JSON_HEX_QUOT) {
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smart_str_appendl(buf, "\\u0022", 6);
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} else {
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smart_str_appendl(buf, "\\\"", 2);
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}
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break;
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case '\\':
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smart_str_appendl(buf, "\\\\", 2);
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break;
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case '/':
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smart_str_appendl(buf, "\\/", 2);
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break;
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case '\b':
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smart_str_appendl(buf, "\\b", 2);
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break;
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case '\f':
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smart_str_appendl(buf, "\\f", 2);
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break;
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case '\n':
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smart_str_appendl(buf, "\\n", 2);
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break;
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case '\r':
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smart_str_appendl(buf, "\\r", 2);
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break;
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case '\t':
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smart_str_appendl(buf, "\\t", 2);
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break;
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case '<':
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if (options & PHP_JSON_HEX_TAG) {
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smart_str_appendl(buf, "\\u003C", 6);
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} else {
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smart_str_appendc(buf, '<');
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}
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break;
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case '>':
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if (options & PHP_JSON_HEX_TAG) {
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smart_str_appendl(buf, "\\u003E", 6);
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} else {
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smart_str_appendc(buf, '>');
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}
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break;
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case '&':
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if (options & PHP_JSON_HEX_AMP) {
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smart_str_appendl(buf, "\\u0026", 6);
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} else {
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smart_str_appendc(buf, '&');
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}
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break;
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case '\'':
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if (options & PHP_JSON_HEX_APOS) {
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smart_str_appendl(buf, "\\u0027", 6);
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} else {
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smart_str_appendc(buf, '\'');
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}
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break;
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default:
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if (us >= ' ' && (us & 127) == us) {
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smart_str_appendc(buf, (unsigned char) us);
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} else {
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smart_str_appendl(buf, "\\u", 2);
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us = REVERSE16(us);
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smart_str_appendc(buf, digits[us & ((1 << 4) - 1)]);
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us >>= 4;
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smart_str_appendc(buf, digits[us & ((1 << 4) - 1)]);
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us >>= 4;
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smart_str_appendc(buf, digits[us & ((1 << 4) - 1)]);
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us >>= 4;
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smart_str_appendc(buf, digits[us & ((1 << 4) - 1)]);
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}
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break;
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}
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}
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smart_str_appendc(buf, '"');
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if (type == IS_STRING) {
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efree(utf16);
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}
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}
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/* }}} */
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static void json_encode_r(smart_str *buf, zval *val, int options TSRMLS_DC) /* {{{ */
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{
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switch (Z_TYPE_P(val))
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{
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case IS_NULL:
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smart_str_appendl(buf, "null", 4);
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break;
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case IS_BOOL:
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if (Z_BVAL_P(val)) {
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smart_str_appendl(buf, "true", 4);
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} else {
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smart_str_appendl(buf, "false", 5);
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}
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break;
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case IS_LONG:
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smart_str_append_long(buf, Z_LVAL_P(val));
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break;
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case IS_DOUBLE:
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{
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char *d = NULL;
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int len;
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double dbl = Z_DVAL_P(val);
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if (!zend_isinf(dbl) && !zend_isnan(dbl)) {
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len = spprintf(&d, 0, "%.*k", (int) EG(precision), dbl);
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smart_str_appendl(buf, d, len);
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efree(d);
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} else {
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zend_error(E_WARNING, "[json] (json_encode_r) double %.9g does not conform to the JSON spec, encoded as 0", dbl);
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smart_str_appendc(buf, '0');
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}
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}
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break;
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case IS_STRING:
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case IS_UNICODE:
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json_escape_string(buf, Z_UNIVAL_P(val), Z_UNILEN_P(val), Z_TYPE_P(val), options TSRMLS_CC);
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break;
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case IS_ARRAY:
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case IS_OBJECT:
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json_encode_array(buf, &val, options TSRMLS_CC);
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break;
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default:
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zend_error(E_WARNING, "[json] (json_encode_r) type is unsupported, encoded as null");
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smart_str_appendl(buf, "null", 4);
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break;
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}
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return;
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}
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/* }}} */
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/* {{{ proto string json_encode(mixed data [, long options]) U
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Returns the JSON representation of a value */
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static PHP_FUNCTION(json_encode)
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{
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zval *parameter;
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smart_str buf = {0};
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long options = 0;
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|l", ¶meter, &options) == FAILURE) {
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return;
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}
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json_encode_r(&buf, parameter, options TSRMLS_CC);
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|
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/*
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* Return as binary string, since the result is 99% likely to be just
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* echo'ed out and we want to avoid overhead of double conversion.
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*/
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ZVAL_STRINGL(return_value, buf.c, buf.len, 1);
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smart_str_free(&buf);
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}
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/* }}} */
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/* {{{ proto mixed json_decode(string json [, bool assoc [, long depth]]) U
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Decodes the JSON representation into a PHP value */
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static PHP_FUNCTION(json_decode)
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{
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zstr str;
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int str_len, utf16_len;
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zend_uchar str_type;
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zend_bool assoc = 0; /* return JS objects as PHP objects by default */
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long depth = JSON_PARSER_DEFAULT_DEPTH;
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zval *z;
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unsigned short *utf16;
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JSON_parser jp;
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "t|bl", &str, &str_len, &str_type, &assoc, &depth) == FAILURE) {
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return;
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}
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if (!str_len) {
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RETURN_NULL();
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}
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if (str_type == IS_UNICODE) {
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utf16 = str.u;
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utf16_len = str_len;
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} else {
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utf16 = (unsigned short *) safe_emalloc((str_len+1), sizeof(unsigned short), 0);
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utf16_len = utf8_to_utf16(utf16, str.s, str_len);
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if (utf16_len <= 0) {
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if (utf16) {
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efree(utf16);
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}
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JSON_G(error_code) = PHP_JSON_ERROR_UTF8;
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RETURN_NULL();
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}
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}
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if (depth <= 0) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Depth must greater than zero");
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efree(utf16);
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RETURN_NULL();
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}
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ALLOC_INIT_ZVAL(z);
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jp = new_JSON_parser(depth);
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if (parse_JSON(jp, z, utf16, utf16_len, assoc TSRMLS_CC)) {
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*return_value = *z;
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}
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else if (str_type == IS_STRING)
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{
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double d;
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int type;
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long p;
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zval_dtor(z);
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RETVAL_NULL();
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if (str_len == 4) {
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if (!strcasecmp(str.s, "null")) {
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/* We need to explicitly clear the error because its an actual NULL and not an error */
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jp->error_code = PHP_JSON_ERROR_NONE;
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RETVAL_NULL();
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} else if (!strcasecmp(str.s, "true")) {
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RETVAL_BOOL(1);
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}
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} else if (str_len == 5 && !strcasecmp(str.s, "false")) {
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RETVAL_BOOL(0);
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}
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if ((type = is_numeric_string(str.s, str_len, &p, &d, 0)) != 0) {
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if (type == IS_LONG) {
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RETVAL_LONG(p);
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} else if (type == IS_DOUBLE) {
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RETVAL_DOUBLE(d);
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}
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}
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if (Z_TYPE_P(return_value) != IS_NULL) {
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jp->error_code = PHP_JSON_ERROR_NONE;
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}
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}
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else
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{
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double d;
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int type;
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long p;
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zval_dtor(z);
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RETVAL_NULL();
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if (str_len == 4) {
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if (ZEND_U_CASE_EQUAL(IS_UNICODE, str, str_len, "null", sizeof("null")-1)) {
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/* We need to explicitly clear the error because its an actual NULL and not an error */
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jp->error_code = PHP_JSON_ERROR_NONE;
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RETVAL_NULL();
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} else if (ZEND_U_CASE_EQUAL(IS_UNICODE, str, str_len, "true", sizeof("true")-1)) {
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RETVAL_BOOL(1);
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}
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} else if (str_len == 5 && ZEND_U_CASE_EQUAL(IS_UNICODE, str, str_len, "false", sizeof("false")-1)) {
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RETVAL_BOOL(0);
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}
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if ((type = is_numeric_unicode(str.u, str_len, &p, &d, 0)) != 0) {
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if (type == IS_LONG) {
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RETVAL_LONG(p);
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} else if (type == IS_DOUBLE) {
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RETVAL_DOUBLE(d);
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}
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}
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if (Z_TYPE_P(return_value) != IS_NULL) {
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jp->error_code = PHP_JSON_ERROR_NONE;
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}
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}
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FREE_ZVAL(z);
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if (str_type == IS_STRING) {
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efree(utf16);
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}
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JSON_G(error_code) = jp->error_code;
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free_JSON_parser(jp);
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}
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/* }}} */
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/* {{{ proto int json_last_error() U
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Returns the error code of the last json_decode(). */
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static PHP_FUNCTION(json_last_error)
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{
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if (zend_parse_parameters_none() == FAILURE) {
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return;
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}
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RETURN_LONG(JSON_G(error_code));
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}
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/* }}} */
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4
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* vim<600: noet sw=4 ts=4
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*/
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