获取数组名称 php

$array = ['apple', 'banana', 'cherry'];
$keys = array_keys($array);
print_r($keys); // 输出: Array ( [0] => 0 [1] => 1 [2] => 2 )

$array = ['apple', 'banana', 'cherry'];
$values = array_values($array);
print_r($values); // 输出: Array ( [0] => apple [1] => banana [2] => cherry )

$array = ['apple' => 'fruit', 'carrot' => 'vegetable'];
foreach ($array as $key => $value) {
    echo "Key: $key; Value: $value\n";
}
// 输出:
// Key: apple; Value: fruit
// Key: carrot; Value: vegetable