php类转json

functionarrayRecursive_o(&$array,$function,$apply_to_keys_also = false){    foreach($arrayas $key=> $value) {        if(is_array($value)) {            $this->arrayRecursive_o($array->$key,$function,$apply_to_keys_also);        } else{            $array->$key= $function($value);        }        if($apply_to_keys_also&&is_string($key)) {            $new_key=$function($key);            if($new_key!= $key) {                $array->$new_key= $array->$key;                unset($array->$key);            }        }    }}function JSON_o($array) {    $this->arrayRecursive_o($array,'urlencode',true);    $json= json_encode($array);    returnurldecode($json);}