使用foreach (多维数组)从键获取值

$array = array(
    "fruit" => array("apple", "banana", "orange"),
    "animal" => array("dog", "cat", "elephant"),
    "color" => array("red", "blue", "green")
);

foreach ($array as $key => $value) {
    echo "Key: " . $key . "<br>";
    foreach ($value as $item) {
        echo "Value: " . $item . "<br>";
    }
    echo "<br>";
}

Key: fruit
Value: apple
Value: banana
Value: orange

Key: animal
Value: dog
Value: cat
Value: elephant

Key: color
Value: red
Value: blue
Value: green