php header函数的常用http头设置

//okheader（‘HTTP/1.1 200 OK"）;//设置一个404头:header（‘HTTP/1.1 404 Not Found"）;//设置地址被永久的重定向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=”refresh” content=”10;http://www.example.org/ />// override X-Powered-By: PHP:header（‘X-Powered-By: PHP/4.4.0′）;header（‘X-Powered-By: Brain/0.6b"）;//文档语言header（‘Content-language: en"）;//告诉浏览器最后一次修改时间$time = time（） – 60; // or filemtime（$fn）, etcheader（‘Last-Modified: ‘.gmdate（‘D, d M Y H:i:s", $time）." GMT"）;//告诉浏览器文档内容没有发生改变header（‘HTTP/1.1 304 Not Modified"）;//设置内容长度header（‘Content-Length: 1234′）;//设置为一个下载类型header（‘Content-Type: application/octet-stream"）;header（‘Content-Disposition: attachment; filename=”example.zip”‘）;header（‘Content-Transfer-Encoding: binary"）;// load the file to send:readfile（‘example.zip"）;// 对当前文档禁用缓存header（‘Cache-Control: no-cache, no-store, max-age=0, must-revalidate"）;header（‘Expires: Mon, 26 Jul 1997 05:00:00 GMT"）; // Date in the pastheader（‘Pragma: no-cache"）;//设置内容类型:header（‘Content-Type: text/html; charset=iso-8859-1′）;header（‘Content-Type: text/html; charset=utf-8′）;header（‘Content-Type: text/plain"）; //纯文本格式header（‘Content-Type: image/jpeg"）; //JPG***header（‘Content-Type: application/zip"）; // ZIP文件header（‘Content-Type: application/pdf"）; // PDF文件header（‘Content-Type: audio/mpeg"）; // 音频文件header（‘Content-Type: application/x-shockw**e-flash"）; //Flash动画//显示登陆对话框header（‘HTTP/1.1 401 Unauthorized"）;header（‘WWW-Authenticate: Basic realm=”Top Secret”‘）;print ‘Text that will be displayed if the user hits cancel or ‘;print ‘enters wrong login data";