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');
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