// convert a date into a string that tells how long ago that date was....
//eg: 2 days ago, 3 minutes ago.

function ago($d) {
$c = getdate();
$p = array('year', 'mon', 'mday', 'hours', 'minutes', 'seconds');
$display = array('year', 'month', 'day', 'hour', 'minute', 'second');
$factor = array(0, 12, 30, 24, 60, 60);
$d = datetoarr($d);
for ($w = 0; $w < 6; $w++) {
if ($w > 0) {
$c[$p[$w]] += $c[$p[$w-1]] * $factor[$w];
$d[$p[$w]] += $d[$p[$w-1]] * $factor[$w];
}
if ($c[$p[$w]] - $d[$p[$w]] > 1) {
return ($c[$p[$w]] - $d[$p[$w]]).' '.$display[$w].'s ago';
}
}
return '';
}