if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 8.0"))echo "Internet Explorer 8.0"; // 这里可以写其他的执行命令else if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 7.0"))echo "Internet Explorer 7.0";else if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 6.0"))echo "Internet Explorer 6.0";else if(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/3"))echo "Firefox 3";else if(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/2"))echo "Firefox 2";else if(strpos($_SERVER["HTTP_USER_AGENT"],"Chrome"))echo "Google Chrome";else if(strpos($_SERVER["HTTP_USER_AGENT"],"Safari"))echo "Safari";else if(strpos($_SERVER["HTTP_USER_AGENT"],"Opera"))echo "Opera";else echo $_SERVER["HTTP_USER_AGENT"];?>复制代码if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE"))echo"禁止用IE浏览器或其他下载工具下载";else header("Content-Disposition: attachment; filename='jquery.js'");//写上文件名?>复制代码php
php禁止用下载工具来下载文件
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