SendMailWithPDFAttachments.php

<?
$email = '[email protected]';
$subject = "Here's a PDF";
$headers = "From: PDF Master <[email protected]>\r\nReply-To: [email protected]"; 
$headers .= "\r\nContent-Type: multipart/mixed; boundary=\"".$boundary."\"";

//build message with attachments

//message
$body = "Here's your PDFs!";

//attachments (3 pdfs)
$random_hash = md5(uniqid(time()));
$boundary = "PHP-mixed-".$random_hash;
$boundaryAlt = "PHP-alt-".$random_hash;
$attachments = array('/path/to/pdf/My1.pdf',
	'/path/to/pdf/My2.pdf',
	'/path/to/pdf/My3.pdf');
$displayFilenames = array("My1.pdf",
	"My2.pdf",
	"My3.pdf");
$attachmentSection="";
for($x=0;$x<count($attachments);$x++){
	$file = fopen($attachments[$x],"rb");
	$data = fread($file,filesize($attachments[$x]));
	fclose($file);
	$data = chunk_split(base64_encode($data));
	$attachmentSection .= "--$boundary\n";
	$attachmentSection .= "Content-Type: \"application/octet-stream\";\n" . " name=\"$displayFilenames[$x]\"\n" . 
	"Content-Disposition: attachment\n". 
	"Content-Transfer-Encoding: base64\n\n" . $data . "\n\n";
}
ob_start(); //Turn on output buffering
?>
 --<?= $boundary; ?>
Content-Type: multipart/alternative; boundary="<?= $boundaryAlt; ?>"

--<?= $boundaryAlt; ?> 
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

<?= $body; ?>

--<?= $boundaryAlt; ?> 
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

<?= $body; ?>

--<?= $boundaryAlt; ?>--

<?= $attachmentSection; ?>

--<?= $boundary; ?>--

<?php 
            
//copy current buffer contents into $message variable and delete current output buffer
$message = ob_get_clean();

if (!filter_var($email, FILTER_VALIDATE_EMAIL) === false)
{
	//valid email address
	$result = mail($email, $subject, $message, $headers);
}