Time stamp ago function like facebook comment, post,...

gistfile1.aw

function time_stamp($from){
    $cmt_date = $from;
    $from = strtotime($from);
    if ( empty($to) )
	                $to = time();
	        $diff = (int) abs($to - $from);
            if($diff <= 1){
                $since = '1 second';
            } else if($diff <= 60 ){
                $since = sprintf(_n('%s second', '%s seconds', $diff), $diff);
            } else if ($diff <= 3600) {
	                $mins = round($diff / 60);
	                if ($mins <= 1) {
	                        $mins = 1;
	                }
	                /* translators: min=minute */
	                $since = sprintf(_n('about %s min', '%s mins', $mins), $mins);
	        } else if ( ($diff <= 86400) && ($diff > 3600)) {
	                $hours = round($diff / 3600);
	                if ($hours <= 1) {
	                        $hours = 1;
	                }
	                $since = sprintf(_n('about %s hour', '%s hours', $hours), $hours);
	        } elseif ($diff >= 86400 && $diff <= 86400*2 ) {
	                $days = round($diff / 86400);
	                if ($days <= 1) {
	                        $days = 1;
	                }
	                $since = sprintf(_n('%s day', '%s days', $days), $days);
	        } else {
                    return date('M d \a\t h:i a',$from);
	        }
	        return $since . ' ago';
}