if ( strpos($_SERVER["HTTP_USER_AGENT"], "FB") !== false) { /* strpos($_SERVER["HTTP_USER_AGENT"], "FB_IAB") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FB4A") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBSN") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBBV") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBSN") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBSV") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBSS") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBID") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "/Messenger") !== false || strpos($_SERVER["HTTP_USER_AGENT"], "FBAV") !== false */ } else { ?> } ?>