, if you filter the front one decimal point

Source: Internet
Author: User
Tags preg
Ask a master, if filter the first decimal point?
The resulting URL may have the following format:

. baidu.com

$name =substr ($name, 1);

Filter. baidu.com Get the result is right, but if you encounter similar baidu.com filter into aidu.com, ask what code can be in front of a bit of the filter point, no point is not filtered?

is to let:
Baidu.com or. baidu.com are ultimately baidu.com.

PHP Code
[User:root time:11:47:47 path:/home/liangdong/php]$ php preg.php baidu.com[user:root Time:11:47:48 Path:/home/ liangdong/php]$ Cat preg.php 
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