util.php

<?
class Util {
	/**
	 * Join paths
	 *
	 * @param
	 *
	 * @return string
	 */
	public static function PathJoin() {
		$args = func_get_args();
		$paths = [];
		foreach ($args as $arg) {
			$paths = array_merge($paths, (array)$arg);
		}
		$paths = array_map(function ($path) {
			return trim($path, '/');
		}, $paths);
		$paths = array_filter($paths);
		return join('/', $paths);
	}
}