PHP使用CURL获取302跳转后的地址实例

      /*返回一个302地址*/
     function  curl_post_302($url, $vars) {

          $ch = curl_init();
          curl_setopt($ch,  curlopt_returntransfer, 1);
          curl_setopt($ch, curlopt_url,  $url);
          curl_setopt($ch, curlopt_post, 1);
          curl_setopt($ch,  curlopt_followlocation, 1); // 302 redirect
          curl_setopt($ch,  curlopt_postfields, $vars);
          $data = curl_exec($ch);
          $headers =  curl_getinfo($ch);
          curl_close($ch);
          if ($data != $headers)
          return  $headers["url"];
          else
          return false;

     }