PHP 메시지 큐 개발 튜토리얼: 분산 예약 작업 스케줄러 구현

<?php

// 配置消息队列服务
$config = [
   'host' => '127.0.0.1',
   'port' => 5672,
   'user' => 'guest',
   'pass' => 'guest',
   'vhost' => '/'
];

// 连接消息队列服务
$connection = new AMQPStreamConnection($config['host'], $config['port'], $config['user'], $config['pass'], $config['vhost']);
$channel = $connection->channel();

// 声明任务队列
$channel->queue_declare('task_queue', false, true, false, false);

// 设置任务
$taskData = [
   'id' => uniqid(),
   'execution_time' => time() + 3600, // 执行时间延迟一小时
   'payload' => 'Hello, World!'
];

// 发送任务
$message = new AMQPMessage(json_encode($taskData), ['delivery_mode' => AMQPMessage::DELIVERY_MODE_PERSISTENT]);
$channel->basic_publish($message, '', 'task_queue');

// 关闭连接
$channel->close();
$connection->close();
?>

<?php

// 连接消息队列服务
$connection = new AMQPStreamConnection($config['host'], $config['port'], $config['user'], $config['pass'], $config['vhost']);
$channel = $connection->channel();

// 声明任务队列
$channel->queue_declare('task_queue', false, true, false, false);

// 注册任务处理器
$callback = function ($message) {
   $taskData = json_decode($message->body, true);

   // 判断任务执行时间是否到达
   if (time() >= $taskData['execution_time']) {
      // 执行任务
      echo "Task ID: {$taskData['id']}
";
      echo "Task Payload: {$taskData['payload']}
";
      // TODO: 执行具体的脚本
   } else {
      // 重新放回队列
      $message->nack(false, true);
   }
};

// 开始消费任务
$channel->basic_qos(null, 1, null);
$channel->basic_consume('task_queue', '', false, false, false, false, $callback);

// 循环处理任务
while (count($channel->callbacks)) {
   $channel->wait();
}

// 关闭连接
$channel->close();
$connection->close();
?>