public function index()

{

//短连接

$myurl= 'http://xhslink.com/muHp';

//curl

$ch= curl_init();

curl_setopt($ch, CURLOPT_URL, $myurl);

curl_setopt($ch, CURLOPT_HEADER,1);

curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);

curl_setopt($ch, CURLOPT_NOBODY,1);

curl_setopt($ch, CURLOPT_RETURNTRANSFER,0);

$ret= curl_exec($ch);

if (empty($ret)) {

die(curl_error($ch));

curl_close($ch);

return false;

}else {

$info= curl_getinfo($ch);

curl_close($ch);

if (empty($info['http_code'])) {

return false;

}else {

return $info['url'];

}

}

}

//获取到如下信息