#43 potential problem with php code

[bahrmann]

I was wondering why I was not getting RH values with
version 2.2.2 Upon further investigation it appears
that it is not calculated unless
taken from phpweather.php

if (!empty($decoded_metar['temperature']['temp_c']) &&
!empty($decoded_metar['temperature']['dew_c'])) {

now my problem with this appears that when either temp
or dew is 0 then by php 4 definition
PHP 4

As of PHP 4, The string value "0" is considered empty.

and therefore rh is not calculated...should !empty be
replaced with isset