PHP で配列を使用してデータを並べ替える方法

$numbers = array(4, 2, 1, 3, 5);
sort($numbers);
print_r($numbers);

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)

$numbers = array(4, 2, 1, 3, 5);
rsort($numbers);
print_r($numbers);

Array
(
    [0] => 5
    [1] => 4
    [2] => 3
    [3] => 2
    [4] => 1
)

$score = array("Tom" => 95, "Jerry" => 80, "Mickey" => 88, "Donald" => 92);
asort($score);
print_r($score);

Array
(
    [Jerry] => 80
    [Mickey] => 88
    [Donald] => 92
    [Tom] => 95
)

$score = array("Tom" => 95, "Jerry" => 80, "Mickey" => 88, "Donald" => 92);
arsort($score);
print_r($score);

Array
(
    [Tom] => 95
    [Donald] => 92
    [Mickey] => 88
    [Jerry] => 80
)

$score = array("Tom" => 95, "Jerry" => 80, "Mickey" => 88, "Donald" => 92);
ksort($score);
print_r($score);

Array
(
    [Donald] => 92
    [Jerry] => 80
    [Mickey] => 88
    [Tom] => 95
)

$score = array("Tom" => 95, "Jerry" => 80, "Mickey" => 88, "Donald" => 92);
krsort($score);
print_r($score);

Array
(
    [Tom] => 95
    [Mickey] => 88
    [Jerry] => 80
    [Donald] => 92
)