relative time php

relative_time.php

<?php


function plural($num) {
	if ($num != 1)
		return "s";
}
 
function getRelativeTime($date) {
	$diff = time() - strtotime($date);
	if ($diff<60)
		return $diff . " segundo" . plural($diff) . " atrás";
	$diff = round($diff/60);
	if ($diff<60)
		return $diff . " minuto" . plural($diff) . " atrás";
	$diff = round($diff/60);
	if ($diff<24)
		return $diff . " hora" . plural($diff) . " atrás";
	$diff = round($diff/24);
	if ($diff<7)
		return $diff . " dia" . plural($diff) . " atrás";
	$diff = round($diff/7);
	if ($diff<4)
		return $diff . " semana" . plural($diff) . " atrás";
	return "on " . date("F j, Y", strtotime($date));
}

echo getRelativeTime("2012-06-01 00:00:00");