time.inc.php

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<?
class Time
{
    public static function formatRelative($startTime, $parens = true)
    {
        global $me;
        
        //make our start and end time.
        $endTime = time();
        $formatStart = $me->formatDateTime($startTime);
        $startTime = strtotime($startTime);
        
        if ($startTime > $endTime)
        {
            $time = Time::elapsed($endTime, $startTime);
            $time = "in " . $time;
        }
        else
        {
            $time = Time::elapsed($startTime, $endTime);
            $time .= " ago";
        }

        if ($parens)
            return "<acronym class=\"relativeTime\" title=\"$formatStart\">($time)</acronym>";
        else
            return "<acronym class=\"relativeTime\" title=\"$formatStart\">$time</acronym>";
    }

     public static function elapsed($startTime, $endTime, $detail = false)
     {
        //how long?
        $elapsed = $endTime - $startTime;

        //how many years?
        $years = floor($elapsed / 31556926);
        if ($years && !$detail)
            return "$years " . Util::pluralize('year', $years);
        $elapsed = $elapsed - ($years * 31556926);
        
        //okay, months?
        $months = floor($elapsed / 2629743.83);
        if ($months && !$detail)
            return "$months " . Util::pluralize('month', $months);
        $elapsed = $elapsed - ($months * 2629743.83);

        //weeks?
        $weeks = floor($elapsed / 604800);
        if ($weeks && !$detail)
            return "$weeks " . Util::pluralize('week', $weeks);
        $elapsed = $elapsed - ($weeks * 604800);

        //how bout days?
        $days = floor($elapsed / 86400);
        if ($days && !$detail)
            return "$days " . Util::pluralize('day', $days);
        $elapsed = $elapsed - ($days * 86400);
        
        //how bout hours?
        $hours = floor($elapsed / 3600);
        if ($hours && !$detail)
            return "$hours " . Util::pluralize('hour', $hours);
        $elapsed = $elapsed - ($hours * 3600);
        
        //how bout minutes?
        $minutes = floor($elapsed / 60);
        if ($minutes && !$detail)
            return "$minutes " . Util::pluralize('minute', $minutes);
        $elapsed = $elapsed - ($minutes * 60);

        //finally, seconds...
        $seconds = $elapsed;
        if (!$detail && $seconds)
            return "$seconds " . Util::pluralize('second', $seconds);

        if (!$detail)
            return "now";

        //if we havent already returned
        return "$years years, $months months, $weeks weeks, $days days, $hours hours, $minutes minutes, and $seconds seconds ";
     }
}
?>

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