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<?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. &lt;br/&gt;&lt;br/&gt;&lt;b&gt;Tip:&lt;/b&gt; You can use these sites to check your headers: &lt;a href="http://web-sniffer.net/"&gt;web-sniffer.net&lt;/a&gt;, &lt;a href="http://www.delorie.com/web/headers.html"&gt;delorie.com&lt;/a&gt; or &lt;a href="http://www.forret.com/projects/analyze/"&gt;www.forret.com&lt;/a&gt;.  
** 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:// &lt;meta http-equiv="refresh" content="10;http://www.example.org/ /&gt;  
  
// 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';?>