安装Mediawiki　1.5.8

安装的时候提示了三个警告！谁能给偶解释一下，谢了～

Warning: set_time_limit(): Cannot set time limit in safe mode in d:\efangvhost4.28\hometang\com_5imovies\web\install-utils.inc on line 27

Warning:PHP's register_globals option is enabled. MediaWiki will work correctly, but this setting increases your exposure to potential security vulnerabilities in PHP-based software running on your server. You should disable it if you are able.

Warning: PHP's safe mode is active. You may have problems caused by this, particularly if using image uploads.

好像都是PHP引起的问题，有两个是由于PHP安全模式引起的？第一个是set_time_limit()函数不支持安全模式，第三个可能是由于在安全模式下启用图片上传等功能导致。第二个是告诉你 php register global选项打开，MediaWiki虽然能够正常工作，但是不安全，建议关闭。

不懂PHP，帮不上忙，呵呵。

Register Globals：

http://www.php.net/manual/zh/security.globals.php

php sofe mode:

http://php.mirror.camelnetwork.com/manual/zh/features.safe-mode.php