Is this possible the way I'm doing it? If so, does anyone know the proper syntax?

PHP Code:

if (isset($_GET['remove'])) {  
     
$remove $_GET['remove'];   //value to be removed
    
}
  
if (
in_array($remove$_SESSION ['cart'])) {  //check to see if value is in array
    
unset($_SESSION['cart'][$remove]); // Remove item from $_SESSION['cart'] array