infinitely extendable time variation with adjustable precision

gistfile1.txt

/* simple-text output for time periods measured in seconds */

function timeAgo($seconds, $precision=2){
	
	$i[1]='s';
	$i[60]='m';
	$i[3600]='h';
	$i[86400]='d';
	$i[31536000]='y';
	
	krsort($i);
	
	foreach($i as $timeInterval=>$shortcode){
		if ($seconds > $timeInterval){
			$precision--;
			$out .= floor($seconds/$timeInterval) . $shortcode;
			$seconds -= floor($seconds/$timeInterval) * $timeInterval;
		}
		if ($precision <=0){
			break;
		}
	}
	
	return $out;
}