PHP header函数使用教程

wyyy721

在php语言中，header()这个函数很有用的，尤其在用到ajax时。　　下面是header的一些详细讲解。  


1 <?php　　2 /**

3 * php header函数用法举例
4 * 整理：www.jbxue.com
5 */
6 // fix 404 pages:
7 header('HTTP/1.1 200 OK');
8 // set 404 header:
9 header('HTTP/1.1 404 Not Found');
10 // set Moved Permanently header (good for redrictions)
11 // use with location header
12 header('HTTP/1.1 301 Moved Permanently');
13 // redirect to a new location:
14 header('Location: http://www.jbxue.com/');
15 // redrict with delay:
16 header('Refresh: 10; url=http://www.jbxue.com/');
17 print 'You will be redirected in 10 seconds';
18 // you could also use the HTML syntax:// <meta http-equiv="refresh" content="10;http://www.jbxue.com/ />
19 // override X-Powered-By: PHP:
20 header('X-Powered-By: PHP/4.4.0');
21 header('X-Powered-By: Brain/0.6b');
22 // content language (en = English)
23 header('Content-language: en');
24 // last modified (good for caching)
25 $time = time() &#8211; 60; // or filemtime($fn), etc
26 header('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT');
27 // header for telling the browser that the content
28 // did not get changed
29 header('HTTP/1.1 304 Not Modified');
30 // set content length (good for caching):
31 header('Content-Length: 1234');
32 // Headers for an download:
33 header('Content-Type: application/octet-stream');
34 header('Content-Disposition: attachment; filename="example.zip"');
35 header('Content-Transfer-Encoding: binary');
36 // load the file to send:readfile('example.zip');
37 // Disable caching of the current document:
38 header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
39 header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
40 // Date in the pastheader('Pragma: no-cache');
41 // set content type:
42 header('Content-Type: text/html; charset=iso-8859-1');
43 header('Content-Type: text/html; charset=utf-8');
44 header('Content-Type: text/plain');
45 // plain text file
46 header('Content-Type: image/jpeg');
47 // JPG picture
48 header('Content-Type: application/zip');
49 // ZIP file
50 header('Content-Type: application/pdf');
51 // PDF file
52 header('Content-Type: audio/mpeg');
53 // Audio MPEG (MP3,&#8230;) file
54 header('Content-Type: application/x-shockwave-flash');
55 // Flash animation// show sign in box
56 header('HTTP/1.1 401 Unauthorized');
57 header('WWW-Authenticate: Basic realm="Top Secret"');
58 print 'Text that will be displayed if the user hits cancel or ';
59 print 'enters wrong login data';
60 ?>