php的header()大全

<?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.jbxue.com/web/headers.html">jbxue.com</a> or <a href="http://www.jbxue.com/projects/analyze/">www.jbxue.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.jbxue.com/'); 



// redrict with delay: 

header('Refresh: 10; url=http://www.jbxue.com/'); 

print 'You will be redirected in 10 seconds'; 



// you could also use the HTML syntax:// <meta http-equiv="refresh" content="10;http://www.jbxue.com/ /> 



// 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'; 

?>