Find url and get ip address of website after redirect

http-redirect, ip-address, php, url

Solution

If you need to get all the redirects, you can do

function getRedirectsToUri($uri)
{
    $redirects = array();
    $http = stream_context_create();
    stream_context_set_params(
        $http,
        array(
            "notification" => function() use (&$redirects)
            {
                if (func_get_arg(0) === STREAM_NOTIFY_REDIRECTED) {
                    $redirects[] = func_get_arg(2);
                }
            }
        )
    );
    file_get_contents($uri, false, $http);
    return $redirects;
}

This will return an array holding all the redirects with the last entry being the final destination.

Example (demo)

print_r(getRedirectsToUri('http://bit.ly/VDcn'));

Output

Array ( 
    [0] => http://example.com/ 
    [1] => http://www.iana.org/domains/example/ 
) 

You'd have to lookup the IP's manually though (see other answers here) but note that a redirect target doesnt have to be a hostname. It can very well be an IP as well.

Problem

Original source

Related problems

• PHP CURL follow redirect to get HTTP status