Using filter_var() to to apply an input filter

<?php
	if (filter_has_var(INPUT_GET, "name") {
		$file_name = filter_var($_GET["name"], FILTER_SANITIZE_STRING);
	}
	if (filter_has_var(INPUT_GET, "src") {
		$source = filter_var($_GET["src"], FILTER_SANITIZE_STRING);
	}
?>