rabbitmq 死信队列 php

<?php

require_once './vendor/autoload.php';
use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Message\AMQPMessage;
use PhpAmqpLib\Wire\AMQPTable;
use PhpAmqpLib\Exchange\AMQPExchangeType;

$connection = new AMQPStreamConnection('127.0.0.1', 5672, 'test', 'test', '/');
$channel = $connection->channel();

$channel->exchange_declare('exchange.dlx', AMQPExchangeType::DIRECT, false, true);
$channel->exchange_declare('exchange.normal', AMQPExchangeType::FANOUT, false, true);
$args = new AMQPTable();
// 消息过期方式：设置 queue.normal 队列中消息10s之后过期
$args->set('x-message-ttl', 10000);
$args->set('x-dead-letter-exchange', 'exchange.dlx');
$args->set('x-dead-letter-routing-key', 'routingkey');
$channel->queue_declare('queue.normal', false, true, false, false, false, $args);
$channel->queue_declare('queue.dlx', false, true, false, false);

$channel->queue_bind('queue.normal', 'exchange.normal');
$channel->queue_bind('queue.dlx', 'exchange.dlx', 'routingkey');
$message = new AMQPMessage('死信队列message');
$channel->basic_publish($message, 'exchange.normal', 'rk');

$channel->close();
$connection->close();