在PHP中可以通过header函数来发送头信息,还可以设置文件的content-type,下面整理了一些常见文件类型对于的content-type值。
//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\';
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