Something

function get($var, $name, $exit_if_failed, $debug)
{
	if(isset($_GET[$name]))
	{
		$var = $_GET[$name];
		if($debug)
			echo $var."<br>";
	}
	else if($exit_if_failed)
	{
        if($debug)
        	echo "exit made on ".$name."<br>";
		exit;
	}
}