查找 t.co 链接指向的位置 [英] Find where a t.co link goes to

问题描述

给定一个 t.co 链接，我如何才能找到链接解析的位置?例如，如果我有 t.co/foo，我想要一个返回 domain.com/bar 的函数或进程.

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.

推荐答案

我会远离您无法控制的外部 API.这只会在您的应用程序中引入一个潜在的故障点，并且可能会花费您的费用.

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 可以很好地做到这一点.这是我在 PHP 中的做法:

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);
}

我确信这可以适用于其他语言，甚至可以在 UNIXy 系统上使用 curl 命令编写脚本.

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/

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