PHP and numeric validation

[balance]

Does anyone know if PHP has a built in "isNumeric" function?

I need something to tell me if my form values are submitted with numbers or not. If there isn't one I guess it will come down to good old brute force.

Thanks for any help.

Cheers,

AJ

 

[piti]

in php >= 4.0, there's the is_numeric() function

http://www.php.net/manual/en/function.is-numeric.php

 

[balance]

Great!

Thanks Piti

 

[BB101]

if (preg_match("/^\d+$/",$var)) {
echo "num";
else {
echo "not num";
}