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';

?>