Something

print 'date(dny): ' . date(dny) . "\n";

$today = mktime(0, 0, 0, date("d")  , date("n"), date("y"));
print '$today: ' . $today . "\n";

$today = date(dny,$today);

print date(dny) . " $today";



gives:
date(dny): 11906
$today: 1163055600
11906 091106