header(string,replace,http_response_code) /*string：必需。規定要發送的報頭字符串。 replace：可選。指示該報頭是否替換之前的報頭，或添加第二個報頭。 默認是 true（替換）。false（允許相同類型的多個報頭）。 http_response_code：可選。把 HTTP 響應代碼強制為指定的值。*/

header("Location:https://baidu.com"); //正常跳轉header('Refresh: 3; url=https://www.baidu.com'); //3s后跳轉//在header作跳轉時,避免發生錯誤后，代碼繼續執行，一般加個exit;

header('content-type:text/html;charset=utf-8');

header('HTTP/1.1 403 Forbidden');

header('Content-Type: application/octet-stream'); //設置內容類型header('Content-Disposition: attachment; filename="example.zip"');//設置MIME用戶作為附件header('Content-Transfer-Encoding: binary'); //設置傳輸方式header('Content-Length: '.filesize('example.zip')); //設置內容長度

header( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' ); //如果服務器上的網頁經常變化，就把它設置為-1，表示立即過期header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' );header( 'Cache-Control: no-store, no-cache, must-revalidate' );header( 'Cache-Control: post-check=0, pre-check=0', false );header( 'Pragma: no-cache' );

<?php// okheader('HTTP/1.1 200 OK');//設置一個404頭:header('HTTP/1.1 404 Not Found');//設置地址被永久的重定向header('HTTP/1.1 301 Moved Permanently');//轉到一個新地址header('Location: http://www.example.org/');//文件延遲轉向:header('Refresh: 10; url=http://www.example.org/');print 'You will be redirected in 10 seconds';//當然，也可以使用html語法實現// <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');//文檔語言header('Content-language: en');//告訴瀏覽器最后一次修改時間$time = time() - 60; // or filemtime($fn), etcheader('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT');//告訴瀏覽器文檔內容沒有發生改變header('HTTP/1.1 304 Not Modified');//設置內容長度header('Content-Length: 1234');//設置為一個下載類型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');// 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'); // Date in the pastheader('Pragma: no-cache');//設置內容類型:header('Content-Type: text/html; charset=iso-8859-1');header('Content-Type: text/html; charset=utf-8');header('Content-Type: text/plain'); //純文本格式header('Content-Type: image/jpeg'); //JPG圖片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: application/x-shockwave-flash'); //Flash動畫//顯示登陸對話框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';?>