public function __construct($plugin_id, $obj)
 {
     if ($obj instanceof _q2w3_table_obj) {
         $this->obj = $obj;
     }
     session_start();
     parent::__construct($plugin_id);
 }
 public function __construct($plugin_id, $obj)
 {
     if ($obj instanceof _q2w3_table_obj) {
         $this->obj = $obj;
     }
     if (key_exists(self::VAR_NAME, $_GET)) {
         $this->search_str = strip_tags(trim(urldecode($_GET[self::VAR_NAME])));
     }
     parent::__construct($plugin_id);
 }