W php?
2011-12-23 - Twoja data
Kod PHP:
<?php
$rok = date('Y');
$mies = date('n');
$dzien = date('d');
$ile_dni = (strtotime("$rok-$mies-$dzien GMT")-strtotime('2011-12-23 GMT'))/86400;
echo $ile_dni;
?>
2011-12-23 - Twoja data