Php library Timeleft

This library is to get what time left in the future... if $future = next month it will return 1 M or if 12 hour left it will return 12h 00m left.

 function timeLeft($future) // $original should be the future date and time in unix format
{
date_default_timezone_set('Asia/Jakarta');
// Common time periods as an array of arrays
$periods = array(
array(60 * 60 * 24 * 365 , 'Y'),
array(60 * 60 * 24 * 30 , 'M'),
array(60 * 60 * 24 * 7, 'W'),
array(60 * 60 * 24 , 'D'),
array(60 * 60 , 'H'),
array(60 , 'M'),
);

$today = time();
$since = $future - $today; // Find the difference of time between now and the future
// Loop around the periods, starting with the biggest

for ($i = 0, $j = count($periods); $i < $j; $i++)
{
$seconds = $periods[$i][0];
$name = $periods[$i][1];
// Find the biggest whole period
if (($count = floor($since / $seconds)) != 0)
{
break;
}
}

$print = ($count == 1) ? '1 '.$name : "$count {$name}";
if ($i + 1 < $j)
{

// Retrieving the second relevant period

$seconds2 = $periods[$i + 1][0];
$name2 = $periods[$i + 1][1];
// Only show it if it's greater than 0

if (($count2 = floor(($since - ($seconds * $count)) / $seconds2)) != 0)
{
$print .= ($count2 == 1) ? ', 1 '.$name2 : ", $count2 {$name2}";
}

}

return $print;
}
?>