[Phpwm] unsigning a numeric variable

[Jon Ramsey]

On 5/5/06, Phil Beynon <phil at infolinkelectronics.co.uk> wrote:
> But since these
> are pixel widths for a mogrify resize, as part of a system manager for
> resizing previously uploaded pics that might be needing tweaking a bit,
> entering a negative pixel value rates as 'bad' and causes execution
> silliness. :-)

What happens with zero?

Cheers,

--
Jon Ramsey