PHP header函数使用教程

来源：互联网发布：赛里木湖的月光知乎编辑：程序博客网时间：2024/05/03 11:57

在php语言中，header()这个函数很有用的，尤其在用到ajax时候，他会帮你解决一些意想不到的问题。
下面是header的一些详细讲解。原文地址：http://www.jbxue.com/article/6915.html

<?php // fix 404 pages: header('HTTP/1.1 200 OK'); // set 404 header: header('HTTP/1.1 404 Not Found'); // set Moved Permanently header (good for redrictions) // use with location header header('HTTP/1.1 301 Moved Permanently'); // redirect to a new 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:// <meta http-equiv="refresh" content="10;http://www.example.org/ /> // 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('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'); // 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: application/pdf'); // www.jbxue.com 脚本学堂// 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: Basic realm="Top Secret"'); print 'Text that will be displayed if the user hits cancel or '; print 'enters wrong login data'; ?>

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