Looking for PHP solution: set date switches to "now"

I'm sure this is an easy one. I'm looking for a small PHP script where I can have a set date (eg "November 13") appear, until that date arrives at which point "Now" would appear instead.

Thanks!

 

$date = '13 November 2007';

if (time() < strtotime($date))
{
    echo $date;
}
else
{
    echo 'Now';
}

PHP:

 

great work pal.i was looking for a solution for this type of date matching problem.this code shows me the way.thanks nico_swd and also thanks to the thread opener.