PHP header() examples 完整代码

/*** 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"');