PHP 常用的header頭部定義匯總，phpheader頭部匯總
<?php
header('HTTP/1.1 200 OK'); // ok 正常訪問
header('HTTP/1.1 404 Not Found'); //通知浏覽器 頁面不存在
header('HTTP/1.1 301 Moved Permanently'); //設置地址被永久的重定向 301
header('Location: http://www.ithhc.cn/'); //跳轉到一個新的地址
header('Refresh: 10; url=http://www.ithhc.cn/'); //延遲轉向 也就是隔幾秒跳轉
header('X-Powered-By: PHP/6.0.0'); //修改 X-Powered-By信息
header('Content-language: en'); //文檔語言
header('Content-Length: 1234'); //設置內容長度
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT'); //告訴浏覽器最後一次修改時間
header('HTTP/1.1 304 Not Modified'); //告訴浏覽器文檔內容沒有發生改變 ###內容類型###
header('Content-Type: text/html; charset=utf-8'); //網頁編碼
header('Content-Type: text/plain'); //純文本格式
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'); // 音頻文件
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動畫 ###### ###聲明一個下載的文件###
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="ITblog.zip"');
header('Content-Transfer-Encoding: binary');readfile('test.zip');###### ###對當前文檔禁用緩存###
header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');###### ###顯示一個需要驗證的登陸對話框###
header('HTTP/1.1 401 Unauthorized');
header('WWW-Authenticate: Basic realm="Top Secret"'); ###### ###聲明一個需要下載的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'); ######?>
