'; } public function register_rest_route() { register_rest_route('cwpai/v1', '/search', [ 'methods' => 'POST', 'callback' => [$this, 'handle_search_request'], 'permission_callback' => '__return_true' ]); } public function handle_search_request($request) { global $wpdb; $term = $request['term']; $sql = $wpdb->prepare("SELECT * FROM {$wpdb->posts} WHERE post_content LIKE %s ORDER BY post_date DESC LIMIT 3", '%' . $wpdb->esc_like($term) . '%'); $posts = $wpdb->get_results($sql); $output = ''; foreach ($posts as $post) { $output .= '

' . esc_html($post->post_title) . '

'; } return $output; } } new Cwpai_Ajax_Search();