Time ago script

time-ago.php

<?php

// usage: echo timeAgo(get_the_time('U'));

function timeAgo($time)
{
    $out = '';
    $now = time();
    $diff = $now - $time;

    if ($diff < 60)
        return 'Published today';

    elseif ($diff < 3600)
        return sprintf(
            "Published %s %s",
            $out = round($diff / 60),
            $out == 1 ? 'minute ago' : 'minutes ago'
        );

    elseif ($diff < 3600 * 24)
        return sprintf(
            "Published %s %s",
            $out = round($diff / 3600),
            $out == 1 ? 'hour ago' : 'hours ago'
        );

    elseif ($diff < 3600 * 24 * 2)
        return 'Published yesterday';

    elseif ($diff < 3600 * 24 * 7)
        return sprintf(
            "Published %s %s",
            $out = round($diff / (3600 * 24)),
            'days ago'
        );

    elseif ($diff < 3600 * 24 * 7 * 4)
        return sprintf(
            "Published %s %s",
            $out = round($diff / (3600 * 24 * 7)),
            $out == 1 ? 'week ago' : 'weeks ago'
        );

    elseif ($diff < 3600 * 24 * 7 * 4 * 12)
        return sprintf(
            "Published %s %s",
            $out = round($diff / (3600 * 24 * 7 * 4)),
            $out == 1 ? 'month ago' : 'months ago'
        );

    else
        return sprintf("Published %s", date('Y m d', $time));
}