PHP header() 函数使用方法总结

// fix 404 pages: 用这个header指令来解决URL重写产生的404 header
header(‘HTTP/1.1 200 OK’);

// set 404 header: 页面没找到
header(‘HTTP/1.1 404 Not Found’);

// 页面被永久删除，可以告诉seo/seo.html" target="_blank">搜索引擎更新它们的urls
// set Moved Permanently header (good for redrictions)
// use with location header
header(‘HTTP/1.1 301 Moved Permanently’);
// 访问受限
header(‘HTTP/1.1 403 Forbidden’);
// 服务器错误
header(‘HTTP/1.1 500 Internal Server Error’);

// 重定向到一个新的位置
// redirect to a new location:
header(‘Location: http://www.m-bang.com);

延迟一段时间后重定向
// redrict with delay:
header(‘Refresh: 10; url=http://www.sina.com.cn’);
print ‘You will be redirected in 10 seconds’;

// 覆盖 X-Powered-By value
// override X-Powered-By: PHP:
header(‘X-Powered-By: PHP/4.4.0′);
header(‘X-Powered-By: Brain/0.6b’);

// 内容语言 (en = English)
// content language (en = English)
header(‘Content-language: en’);

//最后修改时间 (在缓存的时候可以用到)
// 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’);

// 告诉浏览器要获取的内容还没有更新
// header for telling the browser that the content
// did not get changed
header(‘HTTP/1.1 304 Not Modified’);

// 设置内容的长度 (缓存的时候可以用到):
// set content length (good for caching):
header(‘Content-Length: 1234′);

// 用来下载文件:
// Headers for an download:
header(‘Content-Type: application/octet-stream’);
header(‘Content-Disposition: attachment; filename=”example.zip”‘);
header(‘Content-Transfer-Encoding: binary’);

// 禁止缓存当前文档:
// 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’);
// 设置内容类型:
// 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’);

// 显示登录对话框，可以用来进行HTTP认证
// 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 da
ta’;
?>