public function message($str) { $ret = "\n"; $ret .= ReceiptLib::biggerFont(ReceiptLib::centerBig('Save $5 on a ')) . "\n"; $ret .= ReceiptLib::biggerFont(ReceiptLib::centerBig('purchase of $25 or more')) . "\n\n"; $expires = strtotime('+30 days'); $ret .= ReceiptLib::centerString('Expires: ' . date('m/d/Y', $expires)) . "\n"; $barcode = 'RC' . date('ym', $expires) . '009'; $ret .= ReceiptLib::code39($barcode); return array('print' => $ret, 'any' => ''); }