So I am trying to send a fairly simple HTML email using PHP. I have spent the last three days trying to find a good solution and think I found one, but when I test it, it doesn't send properly. I borrowed this code from one of the tutorials I was referencing. The test code is as follows:
<?php
//define the receiver of the email
$to = '[email protected]';
//define the subject of the email
$subject = 'Test HTML email';
//create a boundary string. It must be unique
//so we use the MD5 algorithm to generate a random hash
$random_hash = md5(date('r', time()));
//define the headers we want passed. Note that they are separated with \r\n
$headers = "From: [email protected]\r\nReply-To: [email protected]";
//add boundary string and mime type specification
$headers .= "\r\nContent-Type: multipart/alternative; boundary=\"".$random_hash."\"";
//define the body of the message.
ob_start(); //Turn on output buffering
?>
--<?php echo $random_hash; ?>
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Hello World!!!
This is simple text email message.
--<?php echo $random_hash; ?>
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
<h2>Hello World!</h2>
<p>This is something with <b>HTML</b> formatting.</p>
--<?php echo $random_hash; ?>--
<?
//copy current buffer contents into $message variable and delete current output buffer
$message = ob_get_clean();
//send the email
$mail_sent = @mail( $to, $subject, $message, $headers );
//if the message is sent successfully print "Mail sent". Otherwise print "Mail failed"
echo $mail_sent ? "Mail sent" : "Mail failed";
?>
The problem is that, although it sends the email just fine, it either sends it as plain text, or a blank message in Gmail. Any ideas why?
I should of course tell you to use a library for this, such as swift, but I think this is a good exercise so I'll tell you what's wrong with it :)
It's because your line endings are wrong. Unless otherwise specified, line endings in email messages are CRLF (\r\n
), whereas your ob_start()
block is likely to only have LF (\n
) as the line separator.
This causes GMail to misinterpret the email message and shows nothing instead. In my case it shows an empty download file ;)
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