php中header设置常见文件类型的content-type

//date 2015-06-22
//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.example.org/); 
//文件延迟转向:
header(Refresh: 10; url=http://www.example.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://www.example.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);
 
//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;