[英]How to convert Google short URLs back to its original URL?
我有一些简短的网址。 如何从中获取原始URL?
由于URL-shortener-services大多数都是简单的重定向器,因此它们使用位置标头来告诉浏览器去哪里。
您可以使用PHP自己的get_headers()
函数来获取适当的标题:
$headers = get_headers('http://shorten.ed/fbsfS' , true);
echo $headers['Location'];
尝试这个
<?php
$url="http://goo.gl/fbsfS";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$a = curl_exec($ch); // $a will contain all headers
$url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL); // This is what you need, it will return you the last effective URL
echo $url; // Redirected url
?>
您可以为此使用curl
函数 :
// The short url to expand
$url = 'http://goo.gl/fbsfS';
// Prepare a request for the given URL
$curl = curl_init($url);
// Set the needed options:
curl_setopt_array($curl, array(
CURLOPT_NOBODY => TRUE, // Don't ask for a body, we only need the headers
CURLOPT_FOLLOWLOCATION => FALSE, // Don't follow the 'Location:' header, if any
));
// Send the request (you should check the returned value for errors)
curl_exec($curl);
// Get information about the 'Location:' header (if any)
$location = curl_getinfo($curl, CURLINFO_REDIRECT_URL);
// This should print:
// http://translate.google.com.ar/translate?hl=es&sl=en&u=http://goo.gl/lw9sU
echo($location);
对于所有服务,都有一个可以使用的API。
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