Ciao a tutti,
sono qui per chiedervi un aiuto sul seguente codice:
Codice PHP:
<?php

// request variables // important
$from=$_REQUEST["from"];
$emaila=$_REQUEST["emaila"];
$filea=$_REQUEST["filea"];

if ($filea)
{

function mail_attachment ($from , $to, $subject, $message, $attachment){
    $fileatt = $attachment; // Path to the file                  
    $fileatt_type = "application/octet-stream"; // File Type 
    $start=    strrpos($attachment, '/') == -1 ? strrpos($attachment, '//') : strrpos($attachment, '/')+1;
    $fileatt_name = substr($attachment, $start, strlen($attachment)); // Filename that will be used for the file as the attachment 

    $email_from = $from; // Who the email is from
    $subject = "New Attachment Message";
    $email_subject =  $subject; // The Subject of the email 
    $email_txt = $message; // Message that the email has in it 
    
    $email_to = $to; // Who the email is to

    $headers = "From: ".$email_from;

    $file = fopen($fileatt,'rb'); 
    $data = fread($file,filesize($fileatt)); 
    fclose($file); 
    $msg_txt="\n\n You have recieved a new attachment message from $from";
    $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_txt .= $msg_txt;
    $email_message .= "This is a multi-part message in MIME format.\n\n" . 
                "--{$mime_boundary}\n" . 
                "Content-Type:text/html; charset=\"iso-8859-1\"\n" . 
               "Content-Transfer-Encoding: 7bit\n\n" . 
    $email_txt . "\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($ok)
    {
    echo "File Sent Successfully.";
    unlink($attachment); // delete a file after attachment sent.
    }
    else
    {
        die("Sorry but the email could not be sent. Please go back and try again!"); 
    }
}

move_uploaded_file($_FILES["filea"]["tmp_name"],'upload/'.basename($_FILES['filea']['name']));
mail_attachment("$from", "miaemail@gmail.com", "subject", "message", ("upload/".$_FILES["filea"]["name"]));
}
?>
codice:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Untitled Document</title>

<script language="javascript" type="text/javascript">
function CheckData45()
{

with(document.filepost)
{

if(filea.value != "")
{
document.getElementById('one').innerText = "Attaching File ... Please Wait";
}
}
}
</script>


</head>

<body>

<table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0">
  <tr>
    <td align="center" valign="top">


    <form name="filepost" method="post" action="file.php" enctype="multipart/form-data" id="file">
    <table width="300" border="0" cellspacing="0" cellpadding="0">
      <tr valign="bottom">
        <td height="20">Your Name:</td>
      </tr>
      <tr>
        <td><input name="from" type="text" id="from" size="30"></td>
      </tr>
      <tr valign="bottom">
        <td height="20">Your Email Address:</td>
      </tr>
      <tr>
        <td class="frmtxt2"><input name="emaila" type="text" id="emaila" size="30"></td>
      </tr>
      <tr>
        <td height="20" valign="bottom">RFQ File:</td>
      </tr>
      <tr valign="bottom">
        <td valign="bottom"><input name="filea" type="file" id="filea" size="16"></td>
      </tr>
      <tr>
        <td height="40" valign="middle"><input name="Reset2" type="reset" id="Reset2" value="Reset">
            <input name="Submit2" type="submit" value="Submit" onClick="return CheckData45()"></td>
      </tr>
    </table>
    </form>
	<center>
<table width="400">
<tr>
<td id="one">
</td>
</tr>
</table>
</center>

    </td>
  </tr>
</table>
</body>
</html>
Mi da il seguente errore :

Notice: Undefined index: filea in W:\Inetpub\www.xxx.it \Riservata_Clienti\assistenza_tecnica\file.php on line 6 e sopratutto non mi invia il form.

Mi potete aiutare?

Grazie, ciao
Debora