复制代码 代码如下:
<?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";
?>