PHP 使用header函数设置HTTP头的示例

liwya

• // 页面正常状态 200 ok  
  
• header(‘HTTP/1.1 200 OK’);  
  
•   
  
• //设置一个404头:   404文件找不到错误
  
• header(‘HTTP/1.1 404 Not Found’);   　　
  
•   
  
• //设置地址被永久的重定向  301重定向
  
• header(‘HTTP/1.1 301 Moved Permanently’);  
  
•   
  
• //转到一个新地址  
  
• header(‘Location: http://www.example.org/’);  
  
•   
  
• //文件延迟转向:  
  
• header(‘Refresh: 10; url=http://www.example.org/’);  
  
• print ‘You will be redirected in 10 seconds’;  
  
•   
  
• //当然，也可以使用html语法实现  
  
• // <meta http-equiv=&#8220;refresh&#8221; content=&#8221;10;http://www.example.org/ />  
  
•   
  
• // override X-Powered-By: PHP:  
  
• header(&#8216;X-Powered-By: PHP/4.4.0&#8242;);  
  
• header(&#8216;X-Powered-By: Brain/0.6b&#8217;);  
  
•   
  
• //文档语言  
  
• header(&#8216;Content-language: en&#8217;);  
  
•   
  
• //告诉浏览器最后一次修改时间  
  
• $time = time() - 60; // or filemtime($fn), etc  
  
• header(&#8216;Last-Modified: &#8217;.gmdate(&#8216;D, d M Y H:i:s&#8217;, $time).&#8216; GMT&#8217;);  
  
•   
  
• //告诉浏览器文档内容没有发生改变  
  
• header(&#8216;HTTP/1.1 304 Not Modified&#8217;);  
  
•   
  
• //设置内容长度  
  
• header(&#8216;Content-Length: 1234&#8242;);  
  
•   
  
• //设置为一个下载类型  
  
• header(&#8216;Content-Type: application/octet-stream&#8217;);  
  
• header(&#8216;Content-Disposition: attachment; filename=&#8221;example.zip&#8221;&#8216;);  
  
• header(&#8216;Content-Transfer-Encoding: binary&#8217;);  
  
• // load the file to send:  
  
• readfile(&#8216;example.zip&#8217;);  
  
•   
  
• // 对当前文档禁用缓存  
  
• header(&#8216;Cache-Control: no-cache, no-store, max-age=0, must-revalidate&#8217;);  
  
• header(&#8216;Expires: Mon, 26 Jul 1997 05:00:00 GMT&#8217;); // Date in the past  
  
• header(&#8216;Pragma: no-cache&#8217;);  
  
•   
  
• //设置内容类型:  
  
• header(&#8216;Content-Type: text/html; charset=iso-8859-1&#8242;);  
  
• header(&#8216;Content-Type: text/html; charset=utf-8&#8242;);  
  
• header(&#8216;Content-Type: text/plain&#8217;); //纯文本格式  
  
• header(&#8216;Content-Type: image/jpeg&#8217;); //JPG***  
  
• header(&#8216;Content-Type: application/zip&#8217;); // ZIP文件  
  
• header(&#8216;Content-Type: application/pdf&#8217;); // PDF文件  
  
• header(&#8216;Content-Type: audio/mpeg&#8217;); // 音频文件  
  
• header(&#8216;Content-Type: application/x-shockw**e-flash&#8217;); //Flash动画  
  
•   
  
• //显示登陆对话框  
  
• header(&#8216;HTTP/1.1 401 Unauthorized&#8217;);  
  
• header(&#8216;WWW-Authenticate: Basic realm=&#8221;Top Secret&#8221;&#8216;);  
  
• print &#8216;Text that will be displayed if the user hits cancel or &#8217;;  
  
• print &#8216;enters wrong login data&#8217;;