snippet.php

  
  $email_message = "<p style=\"color:red;\">Hello World!</p>";
  
  $headers    = "From: $email_from\r\n";
  $file       = $_FILES['file']['tmp_name'];
  $file_type  = $_FILES['file']['type'];
  $file_name  = $_FILES['file']['name'];
  
  $f          = fopen($file, 'rb');
  $raw        = fread($f, $_FILES['file']['size']);
  fclose($f);
  
  $attachment = chunk_split(base64_encode($raw));
  
  $rand       = md5(time());
  $boundary   = "Multipart-Boundary-$rand";
  
  $headers   .= "MIME-Version:1.0\r\n".
                "Content-Type: multipart/mixed;\r\n".
                " boundary=\"$boundary\"";
  
  $message   .= "--$boundary\n".
                "Content-Type:text/html; charset=\"iso-8859-1\"\n".
                "Content-Transfer-Encoding: 7bit\n\n".
                $email_message."\n\n";
                
  $message   .= "--$boundary\n".
                "Content-Type={$file_type};\n".
                " name=\"{$file_name}\"\n".
                "Content-Disposition: attachment;\n".
                " filename=\"{$file_name}\"\n".
                "Content-Transfer-Encoding: base64\n\n".
                $attachment."\n\n".
                "--$boundary--\n";