Detailed explanation of PHP header function setting http message header example

<span>//定义编码
header( <span>'Content-Type:text/html;charset=utf-8 ');
 
<span>//Atom
header(<span>'Content-type: application/atom+xml');
 
<span>//CSS
header(<span>'Content-type: text/css');
 
<span>//Javascript
header(<span>'Content-type: text/javascript');
 
<span>//JPEG Image
header(<span>'Content-type: image/jpeg');
 
<span>//JSON
header(<span>'Content-type: application/json');
 
<span>//PDF
header(<span>'Content-type: application/pdf');
 
<span>//RSS
header(<span>'Content-Type: application/rss+xml; charset=ISO-8859-1');
 
<span>//Text (Plain)
header(<span>'Content-type: text/plain');
 
<span>//XML
header(<span>'Content-type: text/xml');
 
<span>//200 OK
header(<span>'HTTP/1.1 200 OK');
 
<span>//设置一个404头:
header(<span>'HTTP/1.1 404 Not Found');
 
<span>//设置地址被永久的重定向
header(<span>'HTTP/1.1 301 Moved Permanently');
 
<span>//转到一个新地址
header(<span>'Location: http://www.example.org/');
 
<span>//文件延迟转向:
header(<span>'Refresh: 10; url=http://www.example.org/');
<span>print <span>'You will be redirected in 10 seconds';
 
<span>//当然，也可以使用html语法实现
<span>//<meta http-equiv="refresh" c>//override X-Powered-By: PHP:
header(<span>'X-Powered-By: PHP/4.4.0');
header(<span>'X-Powered-By: Brain/0.6b');
 
<span>//文档语言
header(<span>'Content-language: en');
 
<span>//告诉浏览器最后一次修改时间
<span>$time = time() - <span>60; <span>// or filemtime($fn), etc
header(<span>'Last-Modified: '.gmdate(<span>'D, d M Y H:i:s', <span>$time).<span>' GMT');
 
<span>//告诉浏览器文档内容没有发生改变
header(<span>'HTTP/1.1 304 Not Modified');
 
<span>//设置内容长度
header(<span>'Content-Length: 1234');
 
<span>//设置为一个下载类型
header(<span>'Content-Type: application/octet-stream');
header(<span>'Content-Disposition: attachment; filename="example.zip"');
header(<span>'Content-Transfer-Encoding: binary');
<span>//load the file to send:
readfile(<span>'example.zip');
 
<span>//对当前文档禁用缓存
header(<span>'Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header(<span>'Expires: Mon, 26 Jul 1997 05:00:00 GMT'); <span>// Date in the past
header(<span>'Pragma: no-cache');
 
<span>//设置内容类型:
header(<span>'Content-Type: text/html; charset=iso-8859-1');
header(<span>'Content-Type: text/html; charset=utf-8');
header(<span>'Content-Type: text/plain'); <span>//纯文本格式
header(<span>'Content-Type: image/jpeg'); <span>//JPG***
header(<span>'Content-Type: application/zip'); <span>// ZIP文件
header(<span>'Content-Type: application/pdf'); <span>// PDF文件
header(<span>'Content-Type: audio/mpeg'); <span>// 音频文件
header(<span>'Content-Type: application/x-shockw**e-flash'); <span>//Flash动画
 
<span>//显示登陆对话框
header(<span>'HTTP/1.1 401 Unauthorized');
header(<span>'WWW-Authenticate: Basic realm="Top Secret"');
<span>print <span>'Text that will be displayed if the user hits cancel or ';
<span>print <span>'enters wrong login data';</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><br>