$email = trim(strip_tags($_POST['email']));  
$tl = trim(strip_tags(POST['tl']));
$tovar2 = trim(strip_tags(['tovar2'])); 
 
if (!empty($email) && !empty($tl) && !empty($tovar2)) 
    { 
    $zakaz = $tl." ".$tovar2."\n"; 

    $fp = fopen("message.txt", "a+");
    flock($fp, LOCK_EX);
    $fw = fwrite($fp, $zakaz);
    flock($fp, LOCK_UN);
    $fc = fclose($fp); 
 
    mail($email, "Tema Pisma", "Вы успешно заказали товар: ".$tovar2);  
    }