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PHP中header函数的常用方法

PHP #header2014-04-13 00:13
//定义编码
header( 'Content-Type:text/html;charset=utf-8 ');


//设置内容类型
header('Content-Type: text/html; charset=iso-8859-1');
header('Content-Type: text/html; charset=utf-8');
header('Content-Type: text/plain'); //纯文本格式
header('Content-Type: image/jpeg'); //JPG***
header('Content-Type: application/zip'); // ZIP文件
header('Content-Type: application/pdf'); // PDF文件
header('Content-Type: audio/mpeg'); // 音频文件
header('Content-Type: application/x-shockw**e-flash'); //Flash动画


//显示登陆对话框
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 data';


//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://yige.org/');


//文件延迟转向:
header('Refresh: 10; url=http://yige.org/');
print 'You will be redirected in 10 seconds';
//当然，也可以使用html语法实现
// <meta http-equiv="refresh" content="10;http://yige.org/ />


// override X-Powered-By: PHP:
header('X-Powered-By: PHP/4.4.0');
header('X-Powered-By: Brain/0.6b');


//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 past
header('Pragma: no-cache');

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