Posted by Janwillem Borleffs on 05/05/06 13:05

Janwillem Borleffs wrote:
> One way would be to apply casting:
>
> $num = "0.005";
> $num2 = "a0.005";
>
> print (float) $num ? 1 : 0; // prints 1
> print (float) $num2 ? 1 : 0; // prints 0
>
>

Or a regexp, which would also catch 0.00:

if (preg_match("/^\d+\.\d+$/", $num)) {
// OK
}


JW

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