Reply To: I want to use post_id in Advanced Description field

[Ernest Marcinko]

It’s because the code only applies on the content. Change that to this, it will work on the title as well:

add_filter( 'asp_results', 'asp_change_content_post_id', 10, 4 );
function asp_change_content_post_id($results, $search_id, $is_ajax, $args) {
	foreach ( $results as $k => &$r ) {
		$r->content = str_replace('|post_id|', $r->id, $r->content);
		$r->title = str_replace('|post_id|', $r->id, $r->title);
	}
    return $results;
}