还原短链接的PHP代码

参考自一缸水的C#还原短地址，原理是模拟请求短地址再获取header中的Location内容，就能拿到正确的页面url。

PHP代码：
[php]
function getRealUrl($shortUrl)
{
$header = get_headers($shortUrl, 1);

if ($header && $header[‘Location’])
{
$location = $header[‘Location’];
if (is_array($location))
{
return $location[0];
}
else
{
return $location;
}
}

return $shortUrl;
}

// For http://t.co/xxx
if (isset($_REQUEST[‘tco’]))
{
$real_tco = getRealUrl(‘http://t.co/’ . $_REQUEST[‘tco’]);
}

// For full short URL
if (isset($_REQUEST[‘shorturl’]))
{
$real_url = getRealUrl($_REQUEST[‘shorturl’]);
}
[/php]

参考源程序：realurl.php，测试

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This entry was posted on 星期一, 22 8 月, 2011 at 16:38 and is filed under 东东博客. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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