pfSense

function update_alias_names_upon_change($section, $subsection, $fielda, $fieldb, $new_alias_name) {

	global $g, $config, $pconfig, $origname, $debug;

	if(!$origname) 

		return;

	if($debug) $fd = fopen("{$g['tmp_path']}/print_r", "a");

	if($debug) fwrite($fd, print_r($pconfig, true));

	if($fieldb) {

		if($debug) fwrite($fd, "fieldb exists\n");

		for ($i = 0; isset($config["$section"]["$subsection"][$i]["$fielda"]); $i++) {

			if($debug) fwrite($fd, "$i\n");

			if($config["$section"]["$subsection"][$i]["$fielda"]["$fieldb"] == $origname) {

				if($debug) fwrite($fd, "Setting old alias value $origname to $new_alias_name\n");

				$config["$section"]["$subsection"][$i]["$fielda"]["$fieldb"] = $new_alias_name;

			}

		}	

	} else {

		if($debug) fwrite($fd, "fieldb does not exist\n");

		for ($i = 0; isset($config["$section"]["$subsection"][$i]["$fielda"]); $i++) {

			if($config["$section"]["$subsection"][$i]["$fielda"] == $origname) {

				$config["$section"]["$subsection"][$i]["$fielda"] = $new_alias_name;

				if($debug) fwrite($fd, "Setting old alias value $origname to $new_alias_name\n");

			}

		}

	}

	if($debug) fclose($fd);

}