/*
 * EchoNokoriDay
 *
 * by kfj (2012.Jan.04 12:31)
 */
function NokoriDays($pDate2) {
    $pDate1 = gmdate('Y-m-d', time() + 60 * 60 * 9);
    // $pDate2 = '2028-05-25';

    $TimeStamp1 = strtotime($pDate1);
    $TimeStamp2 = strtotime($pDate2);

    $SecondDiff = $TimeStamp2 - $TimeStamp1;
    $DayDiff = $SecondDiff / (60 * 60 * 24);

    return $DayDiff;
}