php header函数使用实例代码

php教程|php手册 <?php/*** Function: PHP header() examples (PHP)** Desc: Some examples on how to use the header() function of PHPYou find a detailed tutorial at expertsrt.com (English) or at ffm.junetz.de (German).These is also a good help about caching at web-caching.com.** Example: see below. Tip: You can use these sites to check your headers: web-sniffer.net, delorie.com or www.forret.com.** Author: Jonas John*/// fix 404 pages:header(HTTP/1.1 200 OK);// set 404 header:header(HTTP/1.1 404 Not Found);// set Moved Permanently header (good for redrictions)// use with location headerheader(HTTP/1.1 301 Moved Permanently);// redirect to a new location:header(Location: http://www.example.org/);// redrict with delay:header(Refresh: 10; url=http://www.example.org/);print You will be redirected in 10 seconds;// you could also use the HTML syntax:// // override X-Powered-By: PHP:header(X-Powered-By: PHP/4.4.0);header(X-Powered-By: Brain/0.6b);// content language (en = English)header(Content-language: en);// last modified (good for caching)$time = time() – 60; // or filemtime($fn), etcheader(Last-Modified: .gmdate(D, d M Y H:i:s, $time). GMT);// header for telling the browser that the content// did not get changedheader(HTTP/1.1 304 Not Modified);// set content length (good for caching):header(Content-Length: 1234);// Headers for an download: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);// Disable caching of the current document: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);// set content type:header(Content-Type: text/html; charset=iso-8859-1);header(Content-Type: text/html; charset=utf-8);header(Content-Type: text/plain);// plain text fileheader(Content-Type: image/jpeg);// JPG pictureheader(Content-Type: application/zip);// ZIP fileheader(Content-Type: application/pdf);// PDF fileheader(Content-Type: audio/mpeg);// Audio MPEG (MP3,…) fileheader(Content-Type: application/x-shockwave-flash);// Flash animation// show sign in boxheader(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;?>