Need a regular expression

[user-7256]

Hey,

Can somebody write a regular expression code for me that checks to make sure a string is nothing but numbers and letters?
(Then if not display an error)

Many thanks,
-Matt

 

[stscac]

eregi("^[a-zA-Z0-9_]", $string_youre_checking)

That should work

-Steve

 

[user-7256]

Ah, thanks! ^_^