Restricts Search Results to Blog Posts

/**
 * Snippet Name:     Restricts search results to blog posts
 * Snippet Author:   coding-bunny.com
 * Description:      Restricts search results to only include blog posts.
 */

if (!is_admin()) {
    /**
     * Custom search filter to limit results to posts only.
     *
     * @param WP_Query $query The WP_Query instance (passed by reference).
     */
    function cb_limit_search_to_posts($query) {
        // Check if it's the main query and a search request
        if ($query->is_main_query() && $query->is_search()) {
            // Limit the search to only return posts
            $query->set('post_type', 'post');
        }
    }
    
    // Hook the custom filter into the 'pre_get_posts' action
    add_action('pre_get_posts', 'cb_limit_search_to_posts');
}