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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>3.9. header</title><link rel="stylesheet" type="text/css" href="..//docbook.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><meta name="keywords" content="php, pear, pecl, phar" /><link rel="home" href="../index.html" title="Netkiller PHP 手札" /><link rel="up" href="index.html" title="第 3 章 Function Reference" /><link rel="prev" href="rand.html" title="3.8. rand()" /><link rel="next" href="object.html" title="3.10. Classes/Objects" /></head><body><a xmlns="" href="//www.netkiller.cn/">Home</a> |
<a xmlns="" href="//netkiller.github.io/">简体中文</a> |
<a xmlns="" href="http://netkiller.sourceforge.net/">繁体中文</a> |
<a xmlns="" href="/journal/index.html">杂文</a> |
<a xmlns="" href="//www.netkiller.cn/home/donations.html">打赏(Donations)</a> |
<a xmlns="" href="http://netkiller-github-com.iteye.com/">ITEYE 博客</a> |
<a xmlns="" href="http://my.oschina.net/neochen/">OSChina 博客</a> |
<a xmlns="" href="https://www.facebook.com/bg7nyt">Facebook</a> |
<a xmlns="" href="http://cn.linkedin.com/in/netkiller/">Linkedin</a> |
<a xmlns="" href="https://zhuanlan.zhihu.com/netkiller">知乎专栏</a> |
<a xmlns="" href="/search.html">Search</a> |
<a xmlns="" href="mailto:netkiller@msn.com">Email</a><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">3.9. header</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="rand.html">上一页</a> </td><th width="60%" align="center">第 3 章 Function Reference</th><td width="20%" align="right"> <a accesskey="n" href="object.html">下一页</a></td></tr></table><hr /></div><table xmlns=""><tr><td><iframe src="//ghbtns.com/github-btn.html?user=netkiller&repo=netkiller.github.io&type=watch&count=true&size=large" height="30" width="170" frameborder="0" scrolling="0" style="width:170px; height: 30px;" allowTransparency="true"></iframe></td><td><iframe src="//ghbtns.com/github-btn.html?user=netkiller&repo=netkiller.github.io&type=fork&count=true&size=large" height="30" width="170" frameborder="0" scrolling="0" style="width:170px; height: 30px;" allowTransparency="true"></iframe></td><td><iframe src="//ghbtns.com/github-btn.html?user=netkiller&type=follow&count=true&size=large" height="30" width="240" frameborder="0" scrolling="0" style="width:240px; height: 30px;" allowTransparency="true"></iframe></td></tr></table><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="header"></a>3.9. header</h2></div></div></div>
<pre class="screen">
// See related links for more status codes
// Use this header instruction to fix 404 headers
// produced by url rewriting...
header('HTTP/1.1 200 OK');
// Page was not found:
header('HTTP/1.1 404 Not Found');
// Access forbidden:
header('HTTP/1.1 403 Forbidden');
// The page moved permanently should be used for
// all redrictions, because search engines know
// what's going on and can easily update their urls.
header('HTTP/1.1 301 Moved Permanently');
// Server error
header('HTTP/1.1 500 Internal Server Error');
// Redirect to a new location:
header('Location: http://www.example.org/');
// Redriect with a delay:
header('Refresh: 10; url=http://www.example.org/');
print 'You will be redirected in 10 seconds';
// you can also use the HTML syntax:
// <meta http-equiv="refresh" content="10;http://www.example.org/ />
// override X-Powered-By value
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 past
header('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'); // 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';
</pre>
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