在php語言中，header()這個函數很有用的，尤其在用到ajax時候，他會幫你解決一些意想不到的問題。下面是header的一些詳細講解。希望對phper有幫助
複製程式碼 程式碼如下:
// fix 404 pages:
header('HTTP/1.1 200 OK.1 200 / set. ('HTTP/1.1 404 Not Found');
// set Moved Permanently header (good for redrictions)
// use with location header
header('HTTP/1.1 301 Moved with Permanently'); 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://
/// 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('lient-Type: app. octet-stream');
header('Content-Disposition: attachment; filename="example.zip"');
header('Content-Transfer-Encoding: binary');
// load the file to send:readfile to send:readfile to send:readfile to send:readfile to send:readfile 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: app
// ZIP file
header('Content-Type: application/cation 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: Textic realm="Top Secret"');
will); displayed if the user hits cancel or ';
print 'enters wrong login data';
?>
