PHP中如何进行消息队列处理？

<?php

// 连接Redis
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

// 将一条新任务添加到队列中
$redis->lpush('task_queue', 'new_task');

// 从队列中获取一条任务
$task = $redis->brpop('task_queue', 0)[1];

// 处理任务
processTask($task);

?>

<?php

// 连接RabbitMQ
$connection = new AMQPConnection([
    'host' => 'localhost',
    'port' => '5672',
    'login' => 'guest',
    'password' => 'guest',
]);

$connection->connect();
$channel = new AMQPChannel($connection);

// 创建队列和交换机
$queue = new AMQPQueue($channel);
$queue->setName('task_queue');
$queue->setFlags(AMQP_NOPARAM);
$queue->declareQueue();

$exchange = new AMQPExchange($channel);
$exchange->setName('task_exchange');
$exchange->setType(AMQP_EX_TYPE_DIRECT);
$exchange->declareExchange();

// 绑定队列和交换机
$queue->bind('task_exchange', 'new_task');

// 将一条新任务发布到交换机中
$exchange->publish('new_task', 'new_task');

// 从队列中获取一条任务
$message = $queue->get();

// 处理任务
processTask($message->getBody());

?>

<?php

// 创建Gearman客户端
$client = new GearmanClient();

// 连接Gearman服务节点
$client->addServer('127.0.0.1', 4730);

// 注册任务函数
$client->setCompleteCallback(function (GearmanTask $task) {
    // 处理任务
    processTask($task->data());
});

$client->addTask('new_task', 'new_task');
$client->runTasks();

?>