isdigit in PHP?

[Anon]

Is there a way I can tell whether a value is numeric, alpha only, or mixed?

can someone show me an example?

I believe the easiest way would be to use a pattern match. If so, can some give an example of that?

thanks so much,
-sridhar

[Anon]

There is an is_integer() function, also an is_string() function.

You could also look into regular expressions...I'm not familar enough with them to give you an example, though. Sorry.

---John Holmes...