I have a simple question, but can't find the answer anywhere. What exactly does the 's' parameter search when used in a query? Ex:
$args = array(
's' => $keyword
$query = new WP_Query($args);
Does it just search post content, or does it also look at title, tags, etc?
EDIT: Just to clarify. The question is what post fields are being searched, not what data is being returned.