php常見的header操作

1. 404：

   header ("HTTP/1.1 404 Not Found");

2. 301：

   header ("HTTP/1.1 301 Moved Permanently"); 
   header ("Location:http://www.baidu.com");

3. 下載文件：

   header ('Content-type: application/file');
   header ("Content-Disposition: attachment; filename='test.file'");
   readfile ("test.file");

4. 允許跨域：

   header('Access-Control-Allow-Origin:*');

5. 設置自定義header頭：

   header('Access-Control-Allow-Headers:WWW-Authenticate,Authorization,Set-Cookie,X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version,name');