/**
* json_decode
*
* @param string $encoded 源字符串
* @param string $charset 目标字符串编码 'utf-8' or 'gb2312' or 'big5'
* @return string/array/boolean/null
*/
public static function jsondecode($encoded, $charset = 'utf-8')
{
$encoded = preg_replace(array('/([\\t\\b\\f\\n\\r ])*/s', '#^\\s*//(.+)$#m', '#^\\s*/\\*(.+)\\*/#Us', '#/\\*(.+)\\*/\\s*$#Us'), '', $encoded);
//eat whitespace and comments
self::$target_lang = $charset;
$c = self::cursor($encoded);
switch ($c) {
case '{':
return self::parseArray($encoded);
case '[':
return self::parseArray($encoded, FALSE);
case '"':
return self::string_find($encoded);
case 't':
return TRUE;
case 'f':
return FALSE;
case 'n':
return NULL;
default:
return self::num_read($c . $encoded);
}
}
