php get self

gistfile1.php

  function selfURL() {
			$s = empty($_SERVER["HTTPS"]) ? ''
				: ($_SERVER["HTTPS"] == "on") ? "s"
				: "";
		$protocol = $this->strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s;
		$port = ($_SERVER["SERVER_PORT"] == "80") ? ""
			: (":".$_SERVER["SERVER_PORT"]);
		return $protocol."://".$_SERVER['SERVER_NAME'].$port.dirname($_SERVER['REQUEST_URI'])."/";
	}
	function strleft($s1, $s2) {
		return substr($s1, 0, strpos($s1, $s2));
	}