add_action('init', function () { foreach (['fbclid','fbclickid'] as $k) { if (!empty($_GET[$k])) { // store for later use (7 days) setcookie($k, sanitize_text_field($_GET[$k]), time()+7*24*3600, "/", "", is_ssl(), true); } } }); add_action('template_redirect', function () { foreach (['fbclid','fbclickid'] as $k) { if (isset($_GET[$k])) { wp_safe_redirect(remove_query_arg($k), 302); exit; } } });