Wie kann ich in PHP ein mehrdimensionales Array nach mehreren Spalten sortieren?

<?php
$mylist = array(
    array('ID' => 1, 'title' => 'Boring Meeting', 'date_start' => '2010-07-30', 'event_type' => 'meeting', 'state' => 'new-york'),
    array('ID' => 2, 'title' => 'Find My Stapler', 'date_start' => '2010-07-22', 'event_type' => 'meeting', 'state' => 'new-york'),
    array('ID' => 3, 'title' => 'Mario Party', 'date_start' => '2010-07-22', 'event_type' => 'party', 'state' => 'new-york'),
    array('ID' => 4, 'title' => 'Duct Tape Party', 'date_start' => '2010-07-28', 'event_type' => 'party', 'state' => 'california')
);

# get a list of sort columns and their data to pass to array_multisort
$sort = array();
foreach($mylist as $k => $v) {
    $sort['state'][$k] = $v['state'];
    $sort['event_type'][$k] = $v['event_type'];
    $sort['date_start'][$k] = $v['date_start'];
}

# sort by state asc, event_type desc, and date_start asc
array_multisort($sort['state'], SORT_ASC, $sort['event_type'], SORT_DESC, $sort['date_start'], SORT_ASC, $mylist);

print_r($mylist); // print the sorted array

?php>

<?php
array_multisort(array_column($mylist, 'state'), SORT_ASC,
                array_column($mylist, 'event_type'), SORT_DESC,
                array_column($mylist, 'date_start'), SORT_ASC,
                $mylist);
?php>