Send mail with attachement in php:

Send mail with attachement in php: (MIME/application-pdf)
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<?php
$fileatt = "pdf/pdfname 1101.pdf"; // Path to the file                
$fileatt_type = "application/pdf"; // File Type
$fileatt_name = "pdf/pdfname 1101.pdf"; // Filename that will be used for the file as the attachment
$email_from = "user@webapp.net"; // Who the email is from
$email_subject = "Your attached file"; // The Subject of the email
$email_message = "Thanks for visiting mysite.com!  Here is your free file.<br>";
$email_message .= "Thanks for visiting.<br>"; // Message that the email has in it
$email_to = "siteadmin@webapp.net";//$_POST['email']; // Who the email is to
$headers = "From: ".$email_from;
$file = fopen($fileatt,'rb');
$data = fread($file,filesize($fileatt));
fclose($file);
$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
   
$headers .= "\nMIME-Version: 1.0\n" .
            "Content-Type: multipart/mixed;\n" .
            " boundary=\"{$mime_boundary}\"";
$email_message .= "This is a multi-part message in MIME format.\n\n" .
                "--{$mime_boundary}\n" .
                "Content-Type:text/html; charset=\"iso-8859-1\"\n" .
               "Content-Transfer-Encoding: 7bit\n\n" .
$email_message .= "\n\n";
$data = chunk_split(base64_encode($data));
$email_message .= "--{$mime_boundary}\n" .
                  "Content-Type: {$fileatt_type};\n" .
                  " name=\"{$fileatt_name}\"\n" .
                  //"Content-Disposition: attachment;\n" .
                  //" filename=\"{$fileatt_name}\"\n" .
                  "Content-Transfer-Encoding: base64\n\n" .
                 $data .= "\n\n" .
                  "--{$mime_boundary}--\n";
$ok = @mail($email_to, $email_subject, $email_message, $headers);
if($ok) {
echo "<font face=verdana size=2><center>You file has been sent<br> to the email address you specified.<br>
Make sure to check your junk mail!<br>
Click <a href=\"#\" onclick=\"history.back();\">here</a> to return to mysite.com.</center>";
} else {
die("Sorry but the email could not be sent. Please go back and try again!");
}
?>