数组和对象互转

/**
    * 数组 转 对象
    *
    * @param array $arr 数组
    * @return object
    */
   function array_to_object($arr) {
       if (gettype($arr) != 'array') {
           return;
       }
       foreach ($arr as $k => $v) {
           if (gettype($v) == 'array' || getType($v) == 'object') {
               $arr[$k] = (object)array_to_object($v);
           }
       }

       return (object)$arr;
   }

   /**
    * 对象 转 数组
    *
    * @param object $obj 对象
    * @return array
    */
   function object_to_array($obj) {
       $obj = (array)$obj;
       foreach ($obj as $k => $v) {
           if (gettype($v) == 'resource') {
               return;
           }
           if (gettype($v) == 'object' || gettype($v) == 'array') {
               $obj[$k] = (array)object_to_array($v);
           }
       }

       return $obj;
   }