header(‘HTTP/1.1 200 OK‘);  // ok 正常访谒

header(‘HTTP/1.1 404 Not Found‘); //通知浏览器 页面不存在

header(‘HTTP/1.1 301 Moved Permanently‘); //设置地点被永久的重定向 301

header(‘Location: ‘); //跳转到一个新的地点

header(‘Refresh: 10; url=http://www.ithhc.cn/‘); //延迟转向 也就是隔几秒跳转

header(‘X-Powered-By: PHP/6.0.0‘); //改削 X-Powered-By信息

header(‘Content-language: en‘); //文档语言

header(‘Content-Length: 1234‘); //设置内容长度

header(‘Last-Modified: ‘.gmdate(‘D, d M Y H:i:s‘, $time).‘ GMT‘); //报告浏览器最后一次改削时间

header(‘HTTP/1.1 304 Not Modified‘); //报告浏览器文档内容没有产生转变

###内容类型###

header(‘Content-Type: text/html; charset=utf-8‘); //网页编码

header(‘Content-Type: text/plain‘); //纯文本格局

header(‘Content-Type: image/jpeg‘); //JPG、JPEG 

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: text/css‘); //css文件

header(‘Content-type: text/javascript‘); //js文件

header(‘Content-type: application/json‘);  //json

header(‘Content-type: application/pdf‘); //pdf

header(‘Content-type: text/xml‘);  //xml

header(‘Content-Type: application/x-shockw**e-flash‘); //Flash动画

######

###声明一个下载的文件###

header(‘Content-Type: application/octet-stream‘);

header(‘Content-Disposition: attachment; filename="ITblog.zip"‘);

header(‘Content-Transfer-Encoding: binary‘);

readfile(‘test.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‘);

######

###显示一个需要验证的登陆对话框### 

header(‘HTTP/1.1 401 Unauthorized‘); 

header(‘WWW-Authenticate: Basic realm="Top Secret"‘); 

######

###声明一个需要下载的xls文件###

header(‘Content-Disposition: attachment; filename=ithhc.xlsx‘);

header(‘Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet‘);

header(‘Content-Length: ‘.filesize(‘./test.xls‘)); 

header(‘Content-Transfer-Encoding: binary‘); 

header(‘Cache-Control: must-revalidate‘); 

header(‘Pragma: public‘); 

readfile(‘./test.xls‘);