who to detect number?

[kumschick]

HI

I have a vars x that I want to compaire with an other vars. the the first is >= then action.

But I just found out that if's also possible to have letters in the vars, if the users edits the config file.

Who can I say, it numeric number then, else...?

Thx

[LordShryku]

[man]is_numeric[/man] or [man]is_int[/man] for strict checking.