Find where a t.co link goes to

Question

Given a t.co link, how can I find see where the link resolves? For example, if I have t.co/foo, I want a function or process that returns domain.com/bar.

Answer 1

I would stay away from external APIs over which you have no control. That will simply introduce a dependency into your application that is a potential point of failure, and could cost you money to use.

CURL can do this quite nicely. Here's how I did it in PHP:

function unshorten_url($url) {   $ch = curl_init($url);   curl_setopt_array($ch, array(     CURLOPT_FOLLOWLOCATION => TRUE,  // the magic sauce     CURLOPT_RETURNTRANSFER => TRUE,     CURLOPT_SSL_VERIFYHOST => FALSE, // suppress certain SSL errors     CURLOPT_SSL_VERIFYPEER => FALSE,    ));   curl_exec($ch);    return curl_getinfo($ch, CURLINFO_EFFECTIVE_URL); } 

I'm sure this could be adapted to other languages or even scripted with the curl command on UNIXy systems.

http://jonathonhill.net/2012-05-18/unshorten-urls-with-php-and-curl/