Sending HTML email from php with variables

Question

I'm not very good at php so this should (hopefully) be easy for one of you.

I'm trying to send an HTML email from php which includes variables. I'm able to send a none html email with variables, or an HTML email without variables, but I can't seem to do both at the same time. Here's my code:

<?
$to = "[email protected]";
$from = "[email protected]";
$subject = "Hello! This is HTML email";
'
//begin of HTML message
$message = <<<EOF;

<html>
 <p>Opt out of contact by phone<br />
    '. $_POST["Opt_out_phone"] .'
 </p>
</html> EOF;

$headers  = "From: $from\r\n";
$headers .= "Content-type: text/html\r\n";

mail($to, $subject, $message, $headers);

echo "Message has been sent....!"; ?>

I've never come across <<< EOF before and have no idea what it's doing.

Lusitanian · Accepted Answer · 2012-07-12 17:17:12Z

1

You're using HEREDOC syntax and attempting to terminate the string and append the variable incorrectly and unnecessarily. To declare your string with the variable, do this:

$message = <<<EOF;

<html>
 <p>Opt out of contact by phone<br />
     {$_POST["Opt_out_phone"]}
 </p>
</html> EOF;

Note that the PHP manual entry on heredoc syntax is with the rest of the string docs, here.

answered Jul 12, 2012 at 17:17

Lusitanian

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4 Comments

inhan Over a year ago

Also, EOF is a user defined variable there. You can choose anything as long as you're sure that it won't exist in the string (your html code in your example) there, and it won't be a predefined PHP constant.

Lusitanian Over a year ago

Correct except that it's not a variable, it's just an identifier.

andrewsi Over a year ago

You should also note that the terminating identifier needs to be on a new line with no preceding characters - you can't even indent it.

inhan Over a year ago

@andrewsi That's something I hadn't read anywhere at the time I discovered the heredoc feature and I had real hard time figuring it out. So thanks for stating that, on behalf of everybody.

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