Limit WordPress Search to Post Titles Only

To restrict WordPress search results to only include post titles, you can customize the main query using the posts_search filter. Follow these steps:

1. Access your WordPress theme folder and open the functions.php file.
2. Insert the code snippet below into the file:

function limit_search_to_post_titles($search, $wp_query) {
    if (is_search() && !is_admin()) {
        $search_terms = $wp_query->query_vars['s'];
        
        if (!empty($search_terms)) {
            global $wpdb;
            $search = $wpdb->prepare(" AND {$wpdb->posts}.post_title LIKE %s", '%' . $wpdb->esc_like($search_terms) . '%');
        }
    }
    return $search;
}
add_filter('posts_search', 'limit_search_to_post_titles', 10, 2);

Once saved, your WordPress search will only return posts whose titles contain the searched keywords, ignoring content from body text or other areas.