How can I do this in PHP? e.g.
bit.ly/f00b4r ==> http://www.google.com/search?q=cute+kittens
In Java, the solution is this:
You should issue a HEAD request to the url using a HttpWebRequest instance. In the returned HttpWebResponse, check the ResponseUri.
Just make sure the AllowAutoRedirect is set to true on the HttpWebRequest instance (it is true by default). (Thx, casperOne)
And the code is
private static string GetRealUrl(string url)
{
WebRequest request = WebRequest.Create(url);
request.Method = WebRequestMethods.Http.Head;
WebResponse response = request.GetResponse();
return response.ResponseUri.ToString();
}
(Thx, Fredrik Mork)
But I want to do it in PHP. HOWTO? :)
CREDIT GOES TO http://forums.devshed.com/php-development-5/curl-get-final-url-after-inital-url-redirects-544144.html
function get_web_page( $url )
{
$options = array(
CURLOPT_RETURNTRANSFER => true, // return web page
CURLOPT_HEADER => true, // return headers
CURLOPT_FOLLOWLOCATION => true, // follow redirects
CURLOPT_ENCODING => "", // handle all encodings
CURLOPT_USERAGENT => "spider", // who am i
CURLOPT_AUTOREFERER => true, // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect
CURLOPT_TIMEOUT => 120, // timeout on response
CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
);
$ch = curl_init( $url );
curl_setopt_array( $ch, $options );
$content = curl_exec( $ch );
$err = curl_errno( $ch );
$errmsg = curl_error( $ch );
$header = curl_getinfo( $ch );
curl_close( $ch );
//$header['errno'] = $err;
// $header['errmsg'] = $errmsg;
//$header['content'] = $content;
print($header[0]);
return $header;
}
$thisurl = "http://www.example.com/redirectfrom";
$myUrlInfo = get_web_page( $thisurl );
echo $myUrlInfo["url"];