PHP mail attachment form

<?php
 if ($_SERVER['REQUEST_METHOD']=="POST"){
 $path_info = pathinfo($_FILES['filename']['name']);
        if (!in_array(strtolower($path_info['extension']),array('pdf','zip'))) {
                die ("can not upload this type of file");
        }
 
 
   // we'll begin by assigning the To address and message subject
   $to="reddyfire@gmail.com";
 
   $subject="E-mail with attachment";
 
   // get the sender's name and email address
   // we'll just plug them a variable to be used later
   $from = stripslashes($_POST['fromname'])."<".stripslashes($_POST['fromemail']).">";
 
   
   
   // generate a random string to be used as the boundary marker
   $mime_boundary="==Multipart_Boundary_x".md5(mt_rand())."x";
 
   // store the file information to variables for easier access
   $tmp_name = $_FILES['filename']['tmp_name'];
   $type = $_FILES['filename']['type'];
   $name = $_FILES['filename']['name'];
   $size = $_FILES['filename']['size'];
   $nimi =  $_REQUEST['nimi'];
   $toimi =  $_REQUEST['toimi'];
   $Puhelinnumero =  $_REQUEST['Puhelinnumero'];
   $sahkoposti =  $_REQUEST['fromemail'];
 
 
   // here we'll hard code a text message
   // again, in reality, you'll normally get this from the form submission
   $message = stripslashes($_POST['message'])."$message";
 
   // if the upload succeded, the file will exist
   if (file_exists($tmp_name)){
 
      // check to make sure that it is an uploaded file and not a system file
      if(is_uploaded_file($tmp_name)){
 
         // open the file for a binary read
         $file = fopen($tmp_name,'rb');
 
         // read the file content into a variable
         $data = fread($file,filesize($tmp_name));
 
         // close the file
         fclose($file);
 
         // now we encode it and split it into acceptable length lines
         $data = chunk_split(base64_encode($data));
     }
 
      // now we'll build the message headers
      $headers = "From: $from\r\n" .
         "MIME-Version: 1.0\r\n" .
         "Content-Type: multipart/mixed;\r\n" .
         " boundary=\"{$mime_boundary}\"";
 
      // next, we'll build the message body
      // note that we insert two dashes in front of the
      // MIME boundary when we use it
      $message = "This is a multi-part message in MIME format.\n\n" .
         "--{$mime_boundary}\n" .
         "Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
         "Content-Transfer-Encoding: 7bit\n\n" .
         $message . "\n\n";
 
      // now we'll insert a boundary to indicate we're starting the attachment
      // we have to specify the content type, file name, and disposition as
      // an attachment, then add the file content and set another boundary to
      // indicate that the end of the file has been reached
      $message .= "--{$mime_boundary}\n" .
         "Content-Type: {$type};\n" .
         " name=\"{$name}\"\n" .
         //"Content-Disposition: attachment;\n" .
         //" filename=\"{$fileatt_name}\"\n" .
         "Content-Transfer-Encoding: base64\n\n" .
         $data . "\n\n" .
         "--{$mime_boundary}--\n";
 
      // now we just send the message
      if (@mail($to, $subject, $message, $headers))
         echo "OK, sent.";
      else
         echo "Failed to send";
	  }
	  }
?>
<p>Send an e-mail with an attachment:</p>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" 
   enctype="multipart/form-data" name="form1">
   <p>From name: <input type="text" name="fromname"></p>
   <p>From e-mail: <input type="text" name="fromemail"></p>
   <p>Message:<br> <textarea name="message" rows="3" cols="40"></textarea></p>
   <p>File: <input type="file" name="filename"></p>
   <p><input type="submit" name="Submit" value="Submit"></p>
</form>