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amqp_consumer_fanout_2.php
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amqp_consumer_fanout_2.php
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<?php
// Run multiple instances of amqp_consumer_fanout_1.php and
// amqp_consumer_fanout_2.php to test
include(__DIR__ . '/config.php');
use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Exchange\AMQPExchangeType;
$exchange = 'fanout_example_exchange';
$queue = 'fanout_group_2'; // Let RabbitMQ create a queue name
$consumerTag = 'consumer' . getmypid();
$connection = new AMQPStreamConnection(HOST, PORT, USER, PASS, VHOST);
$channel = $connection->channel();
/*
name: $queue // should be unique in fanout exchange.
passive: false // don't check if a queue with the same name exists
durable: false // the queue will not survive server restarts
exclusive: false // the queue might be accessed by other channels
auto_delete: true //the queue will be deleted once the channel is closed.
*/
$channel->queue_declare($queue, false, false, false, true);
/*
name: $exchange
type: direct
passive: false // don't check if a exchange with the same name exists
durable: false // the exchange will not survive server restarts
auto_delete: true //the exchange will be deleted once the channel is closed.
*/
$channel->exchange_declare($exchange, AMQPExchangeType::FANOUT, false, false, true);
$channel->queue_bind($queue, $exchange);
/**
* @param \PhpAmqpLib\Message\AMQPMessage $message
*/
function process_message($message)
{
echo "\n--------\n";
echo $message->body;
echo "\n--------\n";
$message->ack();
// Send a message with the string "quit" to cancel the consumer.
if ($message->body === 'quit') {
$message->getChannel()->basic_cancel($message->getConsumerTag());
}
}
/*
queue: Queue from where to get the messages
consumer_tag: Consumer identifier
no_local: Don't receive messages published by this consumer.
no_ack: If set to true, automatic acknowledgement mode will be used by this consumer. See https://www.rabbitmq.com/confirms.html for details.
exclusive: Request exclusive consumer access, meaning only this consumer can access the queue
nowait: don't wait for a server response. In case of error the server will raise a channel
exception
callback: A PHP Callback
*/
$channel->basic_consume($queue, $consumerTag, false, false, false, false, 'process_message');
/**
* @param \PhpAmqpLib\Channel\AMQPChannel $channel
* @param \PhpAmqpLib\Connection\AbstractConnection $connection
*/
function shutdown($channel, $connection)
{
$channel->close();
$connection->close();
}
register_shutdown_function('shutdown', $channel, $connection);
// Loop as long as the channel has callbacks registered
$channel->consume();