Mine

<?php

function timeSince($time) {
	$day = date("j",$time);
	
	$days = 0;
	$months = 0;
	$years = 0;
	
	while($time < time()) {
		$time += 60*60*24; /* add a day */
		if($time > time()) { break; }
		$days ++;  
		
		if(date("j",$time) == $day) {
			$months ++;
			$days = 0;
		}
		if($months == 12) {
			$years ++;
			$months = 0;
		}
	}
	return array($years,$months,$days);
}

function time_since($time) {
  $t = timeSince($time);
	echo $t[0]." year, ".$t[1]." months, ".$t[2]. " days.";
}

time_since(strtotime("2007-11-08"));

?>