Find the date for next 15th using php

Question

I am trying to find the date when it's next 15th. I came across this Get the date of the next occurrence of the 18th but this shows the today date if its' 18th..I want to see August 18th 20111.

Is there any way to get the next 15th?

regards

Answer 1

                                   // dynamic typing FTW
$next15th = mktime(0, 0, 0, date('n') + (date('j') >= 15), 15);

echo date('Y-m-d', $next15th);