header功能太多了

<?php


// 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/');   //十秒后进入www.jsxue.com网站


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'; 


?>