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Sending Multi-Part e-Mail With PHP

Posted on 2011-09-29
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Last Modified: 2012-05-12
Hello experts! I've got another one for ya!

I'm trying to build a function that will send a multi-part email

part 1 being a plain text version of the messages to be displayed to non HTML clients.

part 2 the HTML version.

can you please take a look at the below function let me know if you've got any ideas on how to make it wok.

function sendEmail($subject,$from,$to,$html_text,$plain_text){
$notice_text = "This is a multi-part message in MIME format.";
$semi_rand = md5(time());
$mime_boundary = "=MULTIPART_BOUNDARY_$semi_rand";
$mime_boundary_header = chr(34) . $mime_boundary . chr(34);

$body = "$notice_text
 
----$mime_boundary
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

$plain_text

----$mime_boundary
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit

$html_text

----$mime_boundary----";

$headers = "From: " . $from . "\n";
$headers .= "ReplyTo: " . $from . "\n";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-Type: multipart/mixed;\n";
$headers .= "boundary=" . $mime_boundary_header.'\n';
if (mail($to, $subject, $body, $headers)){
    echo "Email sent successfully. ";
	}else{
		echo "Email NOT sent successfully!";
	}
}
sendEmail($subject,$from,$to,$html_text,$plain_text);

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Question by:Cybervanes
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3 Comments
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 36816465
PHPmailer http://code.google.com/a/apache-extras.org/p/phpmailer/ already does that and the source code is available if you're interested.  It's frequently recommended.
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Author Comment

by:Cybervanes
ID: 36816482
Yeah Ive looked into that... looking to learn how it works and build a specific function to suite my specific needs. thanks N E Way!
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LVL 1

Accepted Solution

by:
ob2s earned 500 total points
ID: 36818851
Hi,

I changed a couple of things::
1. Fixed boundary delimiter problem
2. Added a boolean function parameter to allow a caller to specify either multipart/alternative or multipart/fixed content types, with the default being multipart/alternative -- which I'm guessing is what you want, based on your original post.

I ran a quick test and it seems to work for me.

Hope this helps.

<?php
function sendEmail($subject,$from,$to,$html_text,$plain_text,$alternative=true){
$notice_text = "This is a multi-part message in MIME format.";
$semi_rand = md5(time());
$mime_boundary = "=MULTIPART_BOUNDARY_$semi_rand";
$mime_boundary_header = chr(34) . $mime_boundary . chr(34);
$mime_subtype = empty($alternative) ? 'mixed' : 'alternative';

$body = "$notice_text

--$mime_boundary
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

$plain_text

--$mime_boundary
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit

$html_text

--$mime_boundary--
";

$headers = "From: " . $from . "\n";
$headers .= "ReplyTo: " . $from . "\n";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-Type: multipart/" . $mime_subtype . "; ";
$headers .= "boundary=" . $mime_boundary_header."\r\n";
if (mail($to, $subject, $body, $headers)){
    echo "Email sent successfully. ";
	}else{
		echo "Email NOT sent successfully!";
	}
}

$html_text = "
   <h1>Hi There</h1>
   <div>This is the message Body</div>
";
$plain_text = "Hi There\nThis is the message Body";

#sendEmail($subject,$from,$to,$html_text,$plain_text);
#sendEmail('Testing 1 2 3','me@example.com','you@example.com',$html_text,$plain_text);
?>

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