Email Attachment Encoding

[MichigamJim]

After a lot of effort and excellent help here, I have a script working to send email with attachments. The last hurdle seems to be in getting the encoding right.

My script below results in text versus the actual attachment. I've looked it over and over but can't see why the chunk_split(base64_encode($data)) isn't working for me.

<?php
$to = '[email protected]'; 
$from = '[email protected]'; 
$sub = 'Test'; 
$filelist = '/Volumes/server/sites/thesite/some.jpg,/Volumes/server/sites/thesite/some.pdf';
$files = explode(",",$filelist);
$msg = lvMessage; 
$headers = "From: $from"; 

$semi_rand = md5(time()); 
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 

// headers for attachment 
$headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; 

// multipart boundary 
$msg = "This is a multi-part message in MIME format.\n\n" . "–{$mime_boundary}\n" . "Content-Type: text/plain; charset=\"iso-8859-1\"\n" . "Content-Transfer-Encoding: 7bit\n\n" . $msg . "\n\n"; 

// attachments code starts 
for($x=0;$x<count($files);$x++) 
{ 
$msg .= "–{$mime_boundary}\n"; 
$file = fopen($files[$x],"rb"); 
$data = fread($file,filesize($files[$x])); 
fclose($file); 
$data = chunk_split(base64_encode($data)); 
$msg .= "Content-Type: {\"application/octet-stream\"};\n" . " name=\"$files[$x]\"\n" . 
"Content-Disposition: attachment;\n" . " filename=\"$files[$x]\"\n" . 
"Content-Transfer-Encoding: base64\n\n" . $data . "\n\n"; 
} 
$msg .= "–{$mime_boundary}–\n"; 
$res = @mail($to, $sub, $msg, $headers); 

?>