PHP header()函数常用方法

定义编码

header( 'Content-tyPE:text/htML;charset=utf-8 ');

Atom

header('Content-type: application/atom+XMl');

CSS

header('Content-type: text/css');

Javascript

header('Content-type: text/javascript');

JPEG Image

header('Content-type: image/jpeg');

JSON

header('Content-type: application/json');

PDF

header('Content-type: application/pdf');

RSS

header('Content-Type: application/rss+xml; charset=ISO-8859-1');

Text (Plain)

header('Content-type: text/plain');

XML

header('Content-type: text/xml');

ok

header('HTTP/1.1 200 OK');

设置一个404头:

header('HTTP/1.1 404 Not Found');

设置地址被永久的重定向

header('HTTP/1.1 301 Moved Permanently');

转到一个新地址

header('Location: http://www.jbxue.COM/');

文档语言

header('Content-language: en');

告诉浏览器最后一次修改时间

$time = time() - 60; // or filemtime($fn), etc
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT');

告诉浏览器文档内容没有发生改变

header('HTTP/1.1 304 Not Modified');

设置内容长度

header('Content-Length: 1234');

设置为一个下载类型

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');

对当前文档禁用缓存

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');