在PHP中按键长度(值中键长度)对数组进行降序排序

$array = array(
    'key1' => 'value1',
    'key22' => 'value22',
    'key333' => 'value333',
    'key4444' => 'value4444'
);

usort($array, function($a, $b){
    return strlen($b) - strlen($a);
});

print_r($array);

Array
(
    [0] => value4444
    [1] => value333
    [2] => value22
    [3] => value1
)