PHP 获取短网址跳转后的真实地址的实例

$url = 'http://*t.cn*/h5*mwx';
$headers = get_headers($url, TRUE);

print_r($headers);

//输出跳转到的网址
echo $headers['Location'];

附：

Array
(
[0] => HTTP/1.1 302 Moved Temporarily
[Location] => http://www.*1*1*1Cn.net
[Content-Type] => Array
(
[0] => text/html;charset=UTF-8
[1] => text/html;charset=utf-8
)

[Server] => Array
(
[0] => weibo
[1] => BWS/1.0
)

[Content-Length] => Array
(
[0] => 203
[1] => 16424
)

[Date] => Array
(
[0] => Thu, 12 Dec 2013 10:42:25 GMT
[1] => Thu, 12 Dec 2013 10:42:25 GMT
)

[X-Varnish] => 2893360335
[Age] => 0
[Via] => 1.1 varnish
[Connection] => Array
(
[0] => close
[1] => Close
)
)

$header = get_headers($url, 1);
if (strpos($header[0], '301') || strpos($header[0], '302')) {
if (is_array($header['Location'])) {
return $header['Location'][count($header['Location'])-1];
} else {
return $header['Location'];
}
} else {
return $url;
}