電子郵件中的PHP串聯字符串

Question

我的自動電子郵件有一些問題，我嘗試連接變量，但是，它返回的是空白頁而不是重定向。

$to = "*******"; 
$subject = "New signup"; 
$message = " 
Name:" . $row['first_name'] $row['surname'] . 
"Date of birth:" . $row['dob'] . 
"Address" . $row['house'] $row['street'] $row['town'] $row['postcode'] . 
"Application type:" . $name . 
"Price:" . $a . 
"Country of birth:" . $row['origin'] . 
"Phone number:" . $row['number'] . 
"Email:" . $row['email'] . 
""; 
$from = "*******"; 
$headers = "From:" . $from; 
mail($to,$subject,$message,$headers); 
header('Location: payment.php?id='.$row['app_id']); 
exit(); 

任何想法？謝謝您的幫助。

Answer 1

您需要使用之間的連接符每變量和字符串：

Name:" . $row['first_name'] . $row['surname'] . 
"Date of birth:" . $row['dob'] . 
"Address" . $row['house'] . $row['street'] . $row['town'] . $row['postcode'] . 

Answer 2

不要做多級聯/分配這樣。使用HEREDOC。這是一個更容易維護和閱讀：

$message = <<<EOL 
Name: {$row['first_name']} {$row['surname']} 
Date of birth: {$row['dob']} 
etc... 
EOL; 

Answer 3

您可以通過使用字符串插值避免串聯：

$message = " 
Name: {$row['first_name']} {$row['surname']} 
Date of birth: {$row['dob']} 
Address: {$row['house']} {$row['street']} {$row['town']} {$row['postcode']} 
Application type: $name 
Price: $a 
Country of birth: {$row['origin']} 
Phone number: {$row['number']} 
Email: {$row['email']}";