<?php
session_register ('A') ;
if (session_is_registered ('A' ) ) {
session_unregister ( 'A' ) or die ( 'Could not unregister the session variable ' ) ;
}
if (session_is_registered ('A' ) ) {
echo "This session is still registered. " ;
} else {
echo "The session has been successfully unregistered! " ;
}
?>