PHP Decode

<?php 
class C_Utility 
{ 
    public static function add_slashes($str) 
    { 
        if (get_magic_quotes_gpc() == 1) 
        { 
            return $str; 
        } 
        else 
        { 
            return addslashes($str); 
        } 
    } 
    public static function indent_json($json) 
    { 
        $result = ''; 
        $pos = 0; 
        $strLen = strlen($json); 
        $indentStr = "  "; 
        $newLine = "\xa"; 
        for ($i = 0; $i <= $strLen; $i++) 
        { 
            $char = substr($json, $i, 1); 
            if ($char == "}" || $char == "]") 
            { 
                $result .= $newLine; 
                $pos--; 
                for ($j = 0; $j < $pos; $j++) 
                { 
                    $result .= $indentStr; 
                } 
            } 
            $result .= $char; 
            if ($char == "{" || $char == "[") 
            { 
                $result .= $newLine; 
                if ($char == "{" || $char == "[") 
                { 
                    $pos++; 
                } 
                for ($j = 0; $j < $pos; $j++) 
                { 
                    $result .= $indentStr; 
                } 
            } 
        } 
        return $result; 
    } 
    public static function literalBool($boolValue) 
    { 
        return $boolValue ? "true" : "false"; 
    } 
    public static function gen_rowids($arr = array(), $keys = array()) 
    { 
        $rowids = ''; 
        foreach ($keys as $key => $val) 
        { 
            $rowids .= $arr[$val] . PK_DELIMITER; 
        } 
        $rowids = substr($rowids, 0, -3); 
        return $rowids; 
    } 
    public static function is_debug() 
    { 
        return defined("DEBUG") ? DEBUG : false; 
    } 
} ?>