PHP获取301重定向页面跳转后真实URL地址

获取301状态肯定没问题,代码如下:

function getrealurl($url){ 
 $header = get_headers($url,1); 
 if (strpos($header[0],&＃39;301&＃39;) || strpos($header[0],&＃39;302&＃39;)) { 
  if(is_array($header[&＃39;Location&＃39;])) { 
   return $header[&＃39;Location&＃39;][count($header 
[&＃39;Location&＃39;])-1]; 
  }else{ 
   return $header[&＃39;Location&＃39;]; 
  } 
 }else { 
  return $url; 
 } 
}

补充:get_headers,取得服务器响应一个 HTTP 请求所发送的所有标头,代码如下:

$url = &＃39;http://phprm.com&＃39;;print_r(get_headers($url));

结果,代码如下:

Array 
( 
    [0] => HTTP/1.1 301 Moved Permanently 
    [1] => Date: Tue, 01 Jul 2014 07:49:26 GMT 
    [2] => Server: Apache/2.2.22 (Win32) PHP/5.2.17 
    [3] => Location: http://www.phprm.com/ 
    [4] => Content-Length: 314 
    [5] => Content-Type: text/html; charset=iso-8859-1 
    [6] => X-Via: 1.1 jszjsx60:8080 (Cdn Cache Server V2.0), 1.1 zb51:6 (Cdn Cache Server V2.0) 
    [7] => Connection: close 
    [8] => HTTP/1.1 200 OK 
    [9] => Date: Tue, 01 Jul 2014 07:49:27 GMT 
    [10] => Server: Apache/2.2.22 (Win32) PHP/5.2.17 
    [11] => Last-Modified: Tue, 01 Jul 2014 07:41:43 GMT 
    [12] => ETag: "7a0000002fe1a1-68a9-4fd1ce83bc0f7" 
    [13] => Accept-Ranges: bytes 
    [14] => Content-Length: 26793 
    [15] => Content-Type: text/html 
    [16] => X-Via: 1.1 jszjsx60:8080 (Cdn Cache Server V2.0), 1.1 zb62:5 (Cdn Cache Server V2.0) 
    [17] => Connection: close 
)

文章地址:

转载随意^^请带上本文地址!