RE: Syntax for cvs-phpweather???

[Max H. <ma...@fl...>]

> $weather = new phpweather(array()); $weather->set_metar('KVCT');

First up, you need to call set_icao('KVCT'); rather than set_metar() [you
can use set_metar() to feed it a metar directly for testing]

> $text->print_pretty();
> $icons = new pw_images($weather, array());

you don't need to include pw_images or instantiate this class unless you
want do display some pretty icons.

Now, to get the values out of the metar. I've just comitted a function to
CVS that will let you do this - update your code if you're using cvs, or
wait for the next tarball if you're not.

The easiest way to see how to use it is as follows:

First, you need to see the structure that a metar is stored in - just while
you're working out what to do next.

so

echo '<pre>';
print_r($weather->decode_metar());
echo '</pre>';

Next, you need to choose the information you want out. for temperature, you
need $metar['temperature']['temp_f']

You can see this in the output from the first bit, where you have

[temperature] => Array
        (
            [temp_c] => 25
            [temp_f] => 77
            [dew_c] => 19
            [dew_f] => 66
        )

That's telling you that within the array which is storing the metar, there
is an array storing the temp, which has an index temp_f with what you need
in in.

How to get at it:

echo $text->get_metar_value('temperature','temp_f');

that function will take up to three arguments, which will drill into arrays
stored within the metar. So to get the relative humidity,

echo $text->get_metar_value('rel_humidity');

- only one argument because it's not an array of it's own, it's just a
value.

This is all a bit of a hack, there's something not terribly appealing about
having to drill through arrays to find the value you need. I'll see if I
have any cunning ideas about how to make it more accessible for extension.


Max