php禁止用下载工具来下载文件

1. if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 8.0"))
2. echo "Internet Explorer 8.0"; // 这里可以写其他的执行命令
3. else if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 7.0"))
4. echo "Internet Explorer 7.0";
5. else if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 6.0"))
6. echo "Internet Explorer 6.0";
7. else if(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/3"))
8. echo "Firefox 3";
9. else if(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/2"))
10. echo "Firefox 2";
11. else if(strpos($_SERVER["HTTP_USER_AGENT"],"Chrome"))
12. echo "Google Chrome";
13. else if(strpos($_SERVER["HTTP_USER_AGENT"],"Safari"))
14. echo "Safari";
15. else if(strpos($_SERVER["HTTP_USER_AGENT"],"Opera"))
16. echo "Opera";
17. else echo $_SERVER["HTTP_USER_AGENT"];
18. ?>

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1. if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE"))echo"禁止用IE浏览器或其他下载工具下载";
2. else header("Content-Disposition: attachment; filename='jquery.js'");//写上文件名
3. ?>

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