非常实用的header()函数实用介绍:
/**php中header函数用法实例总结: 希望对你有帮助!*/ //1. 页面没找到 Not Found header(‘HTTP/1.1 404 Not Found’); //2. 用这个header指令来解决URL重写产生的404 header header(‘HTTP/1.1 200 OK’); //3. 访问受限 header(‘HTTP/1.1 403 Forbidden’); // The page moved permanently should be used for // all redrictions, because search engines know // what’s going on and can easily update their urls. //4. 页面被永久删除,可以告诉搜索引擎更新它们的urls header(‘HTTP/1.1 301 Moved Permanently’); //5. 服务器错误 header(‘HTTP/1.1 500 Internal Server Error’); //6. 重定向到一个新的位置 header(‘Location: http://www.example.org/’); //7. 延迟一段时间后重定向 header(‘Refresh: 10; url= http://www.example.org/’); echo ’You will be redirected in 10 seconds’; //8. 加载要下载的文件: readfile(‘example.zip’); //9. 也可以使用HTML语法来实现延迟 header(‘Content-Transfer-Encoding: binary’); //10. 禁止缓存当前文档: header(‘Cache-Control: no-cache, no-store, max-age=0, must-revalidate’); header(‘Expires: Mon, 26 Jul 2010 05:00:00 GMT’); header(‘Pragma: no-cache’); //11. 显示登录对话框,可以用来进行HTTP认证 header(‘HTTP/1.1 401 Unauthorized’); header(‘WWW-Authenticate: Basic realm=“Top Secret”‘); echo ’Text that will be displayed if the user hits cancel or ’; echo ’enters wrong login data’; //12. 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’); // plain text file header(‘Content-Type: image/jpeg’); // JPG picture header(‘Content-Type: application/zip’); // ZIP file header(‘Content-Type: application/pdf’); // PDF file header(‘Content-Type: audio/mpeg’); // Audio MPEG (MP3,…) file header(‘Content-Type: application/x-shockwave-flash’); // Flash animation