将字符串拆分为php中的单词

I need to split a string to array of words by using all the non alphabetic and numeric characters(including '_') as delimiter my present code is here

$result= wordarray(preg_split("#[&,$'_.;:\s-*]# ", $data));  

AS you can see it can't work for these characters

)(@#+-*/=!~`/ \

Please help me by adding this characters to the code.

Thanks in advance.

You can use ^ as a not operator...

$result= preg_split("/[^A-Za-z0-9]/", $data);