Unable to send html mail with an attachment - php

Question

Php code used:
$boundary = uniqid("np");
$header = "MIME-Version: 1.0\r\n" ;
$header .= "From: $from\r\n";
$header .= "To: $to\r\n";
if (!is_null($reply_to)) $header .= "Reply-To: $reply_to \r\n";
$header .= "Content-Type: multipart/mixed;boundary=" . $boundary . "\r\n";
//here is the content body
$message = "This is a multi part message in MIME format.\n\n";
$message .= "--" . $boundary . "\n";
$message .= "Content-type: text/html;charset=utf-8\n\n";
$message .= "Hello, <BR> This is a text email, the <bold>html version</bold>.";
$message .= "<BR>Regards";
$message .= "<BR>Your Name";
$message .= "\n\n--" . $boundary . "\n";
$file_name = "file_01.txt";
$file_content = "Ciao - file 1";
$chunked_content = chunk_split(base64_encode($file_content));
$message .= "Content-Type: application/octet-stream; name=\"$file_name\"\n";
$message .= "Content-Disposition: attachment; filename=\"$file_name\"\n";
$message .= "Content-Transfer-Encoding: base64\n\\n" . $chunked_content . "\n\n";
$message .= "--{$boundary}--";
Results: HTML Mail IS OK, there is the attached file with right filename but it's empty
What's wrong ?
Edit: ! tried to replace every \n with \r\n but the results is an empty mail..

Answer 1

I use the following code for email attachments. Try this
function mailWithAttachment($filename, $path, $mailto, $from_mail, $from_name, $replyto, $subject, $message)
{
$file = $path.$filename;
$file_size = filesize($file);
$handle = fopen($file, "r");
$content = fread($handle, $file_size);
fclose($handle);
$content = chunk_split(base64_encode($content));
$uid = md5(uniqid(time()));
$name = basename($file);
$header = "From: ".$from_name." <".$from_mail.">\n";
$header .= "Reply-To: ".$replyto."\n";
$header .= "MIME-Version: 1.0\n";
$header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\n\n";
$header .= "This is a multi-part message in MIME format.\n";
$header .= "--".$uid."\n";
$header .= "Content-type:text/html; charset=iso-8859-1\n";
$header .= $message."\n\n";
$header .= "--".$uid."\n";
$header .= "Content-Type: application/octet-stream; name=\"".$filename."\"\n"; // use different content types here
$header .= "Content-Transfer-Encoding: base64\n";
$header .= "Content-Disposition: attachment; filename=\"".$filename."\"\n\n";
$header .= $content."\n\n";
$header .= "--".$uid."--";
if(mail($mailto, $subject, "", $header))
{
return 1;
}
else
{
return 0;
}
}