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 Code:
$from ''
$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 

$msg .= "{$mime_boundary}\n"
$file fopen($files[$x],"rb"); 
$data fread($file,filesize($files[$x])); 
$data chunk_split(base64_encode($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);