Conversion between array and object

//php 对象到数组转换 
    private function objToArr($obj){ 
        if(!is_object($obj) && !is_array($obj)) { 
            return $obj; 
        } 
        $arr = array(); 
        foreach($obj as $k => $v){ 
            $arr[$k] = $this->objToArr($v); 
        } 
        return $arr; 
    } 
    
    //简单实现json到php数组转换功能 
    private function simple_json_parser($json){ 
        $json = str_replace("{","",str_replace("}","", $json)); 
        $jsonValue = explode(",", $json); 
        $arr = array(); 
        foreach($jsonValue as $v){ 
            $jValue = explode(":", $v); 
            $arr[str_replace('"',"", $jValue[0])] = (str_replace('"', "", $jValue[1])); 
        } 
        return $arr; 
    }