在PHP中迭代嵌套数组

function iterateNestedArray($array) {
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            iterateNestedArray($value); // 递归调用自身处理嵌套数组
        } else {
            echo "Key: " . $key . ", Value: " . $value . "<br>";
        }
    }
}

$array = array(
    "name" => "John",
    "age" => 30,
    "languages" => array("PHP", "JavaScript", "Python"),
    "address" => array(
        "street" => "123 Main St",
        "city" => "New York",
        "country" => "USA"
    )
);

iterateNestedArray($array);

Key: name, Value: John
Key: age, Value: 30
Key: 0, Value: PHP
Key: 1, Value: JavaScript
Key: 2, Value: Python
Key: street, Value: 123 Main St
Key: city, Value: New York
Key: country, Value: USA