[Dismounted]

Nice, clean code is also good (since you're learning). One thing to do is to avoid using too generic variables, as other modifications may "take over" your variable.

PHP Code:

if (month('M') == 'January')
{
    $macworld = 'MacWorld 2009 is going to be BIG!';
}
else
{
    $macworld = 'MacWorld 2009 here we come!';
}