如何检索在php中将值存储在嵌套数组中的json响应对象

$data = array(
    'name' => 'John Doe',
    'age' => 30,
    'email' => 'johndoe@example.com',
    'address' => array(
        'street' => '123 Main St',
        'city' => 'New York',
        'state' => 'NY'
    )
);

$jsonResponse = json_encode($data);
echo $jsonResponse;

$jsonResponse = '{"name":"John Doe","age":30,"email":"johndoe@example.com","address":{"street":"123 Main St","city":"New York","state":"NY"}}';

$data = json_decode($jsonResponse, true);

echo $data['name'];  // 输出：John Doe
echo $data['address']['city'];  // 输出：New York