Multiple meta_key | WordPress.org

I want to sort my cars by two custom fields but can’t get this working properly.

So the primary field would be has_photos order by DESC this never change (I get this one).

The issue is… users can also sort by Price (Low/High) and I can’t find a way to add both custom fields to the sort criteria… but I can only use one of them “price or has_photo”.

		'meta_key' => $meta_key,
		'orderby' => [$meta_value_text => $meta_value]);

I also tried something like this:

	$arg = array('posts_per_page' => $posts_per_page,
		'paged' => $paged,
		'post_type' => 'inventory',
		'meta_query' => array(
			array(
                'key'     => 'has_photos',
                'orderby' => 'meta_value',
                'order' => 'DESC',
            ),
            array(
                'key'     => $meta_key,
                'orderby' => $meta_value_text,
                'order' => $meta_value,
            ),
			'relation' => 'AND', $filter));