Create Day, Hour, Minute and Second countdown in PHP
<p>So far I've got this script that counts down the days and hours, but how can I make it also do minutes and seconds? </p>

<pre><code>$remaining = strtotime($ActiveListing['ListingExpires']) - time();
$days_remaining = floor($remaining / 86400);
$hours_remaining = floor(($remaining % 86400) / 3600);
</code></pre>
