How do I send an HTML email?

[conjurer]

I found a code snippet that will send a plain message - I want to expand on it and actually send an HTML format email...

What would I need to do to replace the text in the <<<EOT heredoc variable with a html message?

Here is the code:

<?php
	//define who is to receive the mail

$mailTo = "[e-mail]";

//set the subject
$mailSubject = "Testing Mail 1";

//build body of the message
$mailBody = <<<EOT
"This is a test of PHP's mail function. It was generated by PHP."
EOT;


//add a from header
$mailHeaders = "From: PHP Script <php@{$_SERVER["SERVER_NAME"]}>\r\n";

//send mail
if(mail($mailTo, $mailSubject, $mailBody, $mailHeaders))
{
	print("Mail sent successfully.");
}
else
{
	print("Mail failed!");
}
?>

[conjurer]

Here is some other code I found in the book CorePHP that is supposed to do HTML email. But I can't get the message to come through - it seems to be gibberish or invisible. The mail comes, and I can see the header, subject etc.

I think maybe it is the character encoding? I added the $body text string and stuck that in the mail function but I am not seeing it when I download the email.

Any ideas?

<?php
	//add From: header
	$headers = "From: webserver@localhost\r\n";

//specify MIME version 1.0
$headers .= "MIME-Version: 1.0\r\n";

//unique boundary
$boundary = uniqid("COREPHP");

//tell e-mail client this e-mail contains
//alternate versions
$headers .= "Content-Type: multipart/alternative" .
	"; boundary = $boundary\r\n\r\n";

//message to people with clients who don't
//understand MIME
$headers .= "This is a MIME encoded message.\r\n\r\n";

//plain text version of message
$headers .= "--$boundary\r\n" .
	"Content-Type: text/plain; charset=UTF-7\r\n" .
	"Content-Transfer-Encoding: base64\r\n\r\n";
$headers .= chunk_split(base64_encode(
	"This is the plain text version!"));

//HTML version of message
$headers .= "--$boundary\r\n" .
	"Content-Type: text/html; charset=UTF-7\r\n" .
	"Content-Transfer-Encoding: base64\r\n\r\n";
$headers .= chunk_split(base64_encode(
"This the <b>HTML</b> version!"));

$body = "<h1>This the <b>HTML</b> version!</h1>";

//send message
mail("[e-mail]", "An HTML Message", $body, $headers);
print("HTML Email sent!");
?>

[NogDog]

See the mail() function page, and in particular Example 1127.

Also, you may want to consider using something like the PHPMailer class to help automate the process.