您可以先使用

remove_filter( \'hook\', \'function_name\' );

例如

    function remove_content_filter() {

       remove_filter( \'the_content\', \'function_name\' );

    }

    add_action( \'after_setup_theme\', \'remove_content_filter\' );

    function new_function_name( $output ) {
        //some code here
        return $output;
    }

    add_filter( \'the_content\', \'new_function_name\' );