ขอโค๊ดที่สามารถเก็บ url หลังการ redirect หน่อยครับ

$_SERVER["HTTP_REFERER"];

$urls = 'https://goo.gl/bLn8tC';

$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);


curl_setopt($ch, CURLOPT_URL, $urls);
$out = curl_exec($ch);

// line endings is the wonkiest piece of this whole thing
$out = str_replace("\r", "", $out);

// only look at the headers
$headers_end = strpos($out, "\n\n");
if($headers_end !== false) { 
	$out = substr($out, 0, $headers_end);
}   

$headers = explode("\n", $out);
foreach($headers as $header) {
	if(substr($header, 0, 10) == "Location: "){ 
		$target = substr($header, 10);
		echo $target;
	}   
}