Well I figured out I could duplicate the function and rename the title so it runs twice. But for future, is there a more elegant way of doing this in one instance? thanks!

// orderby slideshows

// only alter the order for slider with "x" ID
// https://tinyurl.com/zb6hzpc

if($slider_id == 17 ) {

    // Custom Meta key/name
    $query[\'meta_key\'] = \'numeric_order\';

    // Order by Custom Meta values
    $query[\'orderby\'] = \'numeric_order\';

    // Calculate order based on:
    // \'NUMERIC\', \'CHAR\', \'DATE\', \'DATETIME\', \'TIME\'
    $query[\'meta_type\'] = \'NUMERIC\';

}


return $query;

添加过滤器（\'revslider\\u get\\u posts\'，\'modify\\u slider\\u order\'，10，2）；

//orderby幻灯片2

函数modify\\u slider\\u order2（$query，$slider\\u id）{

// only alter the order for slider with "x" ID
// https://tinyurl.com/zb6hzpc

if($slider_id == 16 ) {

    // Custom Meta key/name
    $query[\'meta_key\'] = \'numeric_order\';

    // Order by Custom Meta values
    $query[\'orderby\'] = \'numeric_order\';

    // Calculate order based on:
    // \'NUMERIC\', \'CHAR\', \'DATE\', \'DATETIME\', \'TIME\'
    $query[\'meta_type\'] = \'NUMERIC\';

}


return $query;

添加过滤器（\'revslider\\u get\\u posts\'，\'modify\\u slider\\u order2\'，10，2）；

可能是延迟回复，但您可以通过使用逻辑运算符来实现这一点（请参见https://www.php.net/manual/en/language.operators.logical.php 有关此主题的更多信息）

因此，让我们更改if语句以添加第二个滑块

// orderby slideshows
function modify_slider_order($query, $slider_id) {

    if($slider_id == 17 || $slider_id == 16 ) {

        // Custom Meta key/name
        $query[\'meta_key\'] = \'numeric_order\';

        // Order by Custom Meta values
        $query[\'orderby\'] = \'numeric_order\';

        // Calculate order based on:
        // \'NUMERIC\', \'CHAR\', \'DATE\', \'DATETIME\', \'TIME\'
        $query[\'meta_type\'] = \'NUMERIC\';

    }

    return $query;

}
add_filter(\'revslider_get_posts\', \'modify_slider_order\', 10, 2);