<?php
//A
$today = time();
//B
$event = mktime(0,0,0,12,25,date("Y"));
//C
$apart = $event - $today;
//D
if ($apart >= -86400)
{
$myevent = $event;
}
//E
else
{
$myevent = mktime(0,0,0,12,25,date("Y")+1);
}
//F
$countdown = round(($myevent - $today)/86400);
//G
if ($countdown > 1)
{
echo "$countdown days until Christmas";
}
//H
elseif (($myevent-$today) <= 0 && ($myevent-$today) >= -86400)
{
echo "Today is Christmas!";
}
//I
else
{
echo "$countdown day until Christmas";
}
?>