php header示例代码(推荐)

<?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. <br/><br/><b>Tip:</b> You can use these sites to check your headers: <a href="http://web-sniffer.net/">web-sniffer.net</a>, <a href="http://www.delorie.com/web/headers.html">delorie.com</a> or <a href="http://www.forret.com/projects/analyze/">www.forret.com</a>.
** 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 header
header(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:// <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);

// content language (en = English)
header(Content-language: en);

// last modified (good for caching)
$time = time() – 60; // or filemtime($fn), etc
header(Last-Modified: .gmdate(D, d M Y H:i:s, $time). GMT);

// header for telling the browser that the content
// did not get changed
header(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 file
header(Content-Type: image/jpeg);

// JPG picture
header(Content-Type: application/zip);

// ZIP file
header(Content-Type: application/pdf);

// PDF file
header(Content-Type: audio/mpeg);

// Audio MPEG (MP3,…) file
header(Content-Type: application/x-shockwave-flash);

// Flash animation// show sign in box
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;
?>