PHP header sample code (recommended)_PHP tutorial

/*** 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.

Tip: You can use these sites to check your headers: web-sniffer.net, delorie.com or www.forret.com.
** 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:// 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';
?>