[RESOLVED] variables

[westconn1]

i am using a php script to send emails from a html form, this is all working fine, but i have been asked to add some identification to the email, to check for multiple emails from the same user with different fake return addresses

here is the part of the script that sends the email

$messageproper =
    "This message was sent from:\n" .
    "$http_referrer\n" .
    "------------------------------------------------------------\n" .
    "Name of sender: $name\n" .
    "Email of sender: $email\n" .
    "------------------------- COMMENTS -------------------------\n\n" .
    $comments .
    "\n\n------------------------------------------------------------\n" ;
mail($mailto, $subject, $messageproper,
    "From: \"$name\" <$email>" . $headersep . "Reply-To: \"$name\" <$email>" . $headersep . "X-Mailer: chfeedback.php 2.08" );
header( "Location: $thankyouurl" );
exit ; 

i would like to get some id from the users computer or ip address or whatever is available

i am a lot more comfortable with vb6 than php....................