refer_id_filter - changes the referid of any given url

gistfile1.aw

<?php

	function referid_filter($url, $refer_id) {
		$regex = "%http[s]*\:\/\/www\.hccmis\.com\/[\w-\/]+\?referid=(\d*)%";
		if(preg_match($regex, $url, $matches)) {
			if($matches[1] == "") {
				return $url . $refer_id;
			} else {
				$url_arr = explode("?referid=", $url);
				return $url_arr[0] . "?referid=" . $refer_id;
			}
		} else {
			return false;
		}
	}

	echo referid_filter("https://www.hccmis.com/atlas-travel-insurance-quote/atlas_travel/?referid=12352342", "000000");
  
?>