Come ordinare un Array di date

[whisher]

Prova questo

function cmp($a, $b)
{
    $aChunks = explode('-',$a);
    $bChunks = explode('-',$b);
    $a = mktime (0,0, 0, $aChunks[1], $aChunks[0], $aChunks[2]);
    $b = mktime (0,0, 0, $bChunks[1], $bChunks[0], $bChunks[2]); 
    if ($a == $b) {
        return 0;
    }
    return ($a < $b) ? -1 : 1;
}

$dates = array('06-01-2006', '06-01-2008', '06-01-2007', '06-01-2009', '01-01-2009','18-01-1990');

usort($dates, "cmp");
echo "<pre>";
var_dump($dates);