// PHP调用Java REST服务示例
$url = 'http://java-service/api/users';
$data = ['name' => 'John', 'email' => 'john@example.com'];

$options = [
    'http' => [
        'header'  => "Content-type: application/json\r\n",
        'method'  => 'POST',
        'content' => json_encode($data),
    ],
];
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);

// Java发送消息到RabbitMQ示例
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
try (Connection connection = factory.newConnection();
     Channel channel = connection.createChannel()) {
    channel.queueDeclare("php_java_queue", false, false, false, null);
    String message = "Hello from Java!";
    channel.basicPublish("", "php_java_queue", null, message.getBytes());
}

// PHP和Java共享MySQL数据库
$pdo = new PDO('mysql:host=localhost;dbname=shared_db', 'user', 'password');
$stmt = $pdo->query("SELECT * FROM shared_table");

// 使用PHP/Java Bridge
$system = new Java("java.lang.System");
echo $system->getProperties();