Logic issue | WordPress.org

This is the PHP code:

	if($_GET["yearSearch"] != ""){
		array_push($filter, array('key' => 'year', 'type' => 'NUMERIC', 'value' => explode(",", $_GET["yearSearch"]), 'compare' => '='));
	}

$arg = array('posts_per_page' => $posts_per_page,
		'paged' => $paged,
		'post_type' => 'inventory',
		'meta_query' => array('relation' => 'AND', $filter),
		'orderby' => 'ASC');

	$posts = get_posts($arg);

Complementing: if I just add one year like 2019 it returns cars from 2019.. the issue is when I have more than one… 2023,2022,2019…

The problem could be the way of comparison at the filter. You currently write

'value' => explode(",", $_GET["yearSearch"]), 'compare' => '='

Use:

'value' => $_GET["yearSearch"], 'compare' => 'IN'

Background: if you use an array as a list here, you can use “IN” to consider all values contained in it. See: https://wordpress.stackexchange.com/questions/55354/how-can-i-create-a-meta-query-with-an-array-as-meta-field

If it still doesn’t work, debug your code carefully. Check what you pass to get_posts() as an array and compare that with the specifications of WP_Query especially regarding meta_queries:

If you still need help it would also be interesting to see what exactly is in $GET[‘yearSearch’].

@threadi bro this is GOLD, it works perfectly! Thank you so much, I appreciate your help!