php list排序

$array = [1, 2, 3];
list($a, $b, $c) = $array;
echo $a; // 输出 1
echo $b; // 输出 2
echo $c; // 输出 3

$array = [3, 1, 2];
sort($array);
print_r($array); // 输出 [0 => 1, 1 => 2, 2 => 3]

$array = [3, 1, 2];
rsort($array);
print_r($array); // 输出 [0 => 3, 1 => 2, 2 => 1]

$array = ['b' => 3, 'a' => 1, 'c' => 2];
asort($array);
print_r($array); // 输出 ['a' => 1, 'c' => 2, 'b' => 3]

$array = ['b' => 3, 'a' => 1, 'c' => 2];
arsort($array);
print_r($array); // 输出 ['b' => 3, 'c' => 2, 'a' => 1]

$array = [1, 2, 3];
list($a, $b, $c) = $array; // 正确

$array = ['a' => 1, 'b' => 2, 'c' => 3];
foreach ($array as $key => $value) {
    echo "$key: $value\n";
}