我有自己的类，它扩展了WP\\u List\\u Table类，一切都很好，但批量操作有一些问题。他们的表现很好（删除表中的行、更改项目状态等），但重新加载时会出现以下错误和注意事项：

Notice: Undefined offset: 0 in /home/www/interier-ricany.cz/www/bonus.interier-ricany.cz/wp-includes/functions.php on line 773
Notice: Undefined offset: 0 in /home/www/interier-ricany.cz/www/bonus.interier-ricany.cz/wp-includes/functions.php on line 813
Notice: Undefined offset: 0 in /home/www/interier-ricany.cz/www/bonus.interier-ricany.cz/wp-includes/functions.php on line 818
Notice: Undefined offset: 1 in /home/www/interier-ricany.cz/www/bonus.interier-ricany.cz/wp-includes/functions.php on line 818
Warning: Cannot modify header information - headers already sent by (output started at /home/www/interier-ricany.cz/www/bonus.interier-ricany.cz/wp-includes/formatting.php:5081) in /home/www/interier-ricany.cz/www/bonus.interier-ricany.cz/wp-includes/pluggable.php on line 1179

我发现这和$args 在page中，我试图找出重定向的错误，但没有找到任何结果：

public function process_bulk_action() {

        //Detect when a bulk action is being triggered...
        if ( \'delete\' === $this->current_action() ) {

            // In our file that handles the request, verify the nonce.
            $nonce = esc_attr( $_REQUEST[\'_wpnonce\'] );

            if ( ! wp_verify_nonce( $nonce, \'sp_smazat_objednavku\' ) ) {
                die( \'Go get a life script kiddies\' );
            }
            else {
                self::smazat_objednavku( absint( $_GET[\'customer\'] ) );

                        // esc_url_raw() is used to prevent converting ampersand in url to "#038;"
                        // add_query_arg() return the current url$
                        wp_redirect( esc_url_raw(add_query_arg()) );                        
                exit;
            }

        }
//[...]
}

你能看到什么吗？如果需要，完整代码在此处：https://pastebin.com/D5mprA9x

add_query_arg([])