RabbitMQ : Use on PHP2022/09/13

	This is an example to use RabbitMQ on PHP.
[1]	Install some packages.

root@dlp:~#

apt -y install php-amqp

[2]	This is an example of sending message on PHP. For example, connect with RabbitMQ on [localhost] with a user [serverworld], virtualhost [my_vhost].

ubuntu@dlp:~$

vi send_msg.php

<?php

$connection = new AMQPConnection();
$connection->setHost('127.0.0.1');
$connection->setVhost('/my_vhost');
$connection->setLogin('serverworld');
$connection->setPassword('password');
$connection->connect();

$channel = new AMQPChannel($connection);
$exchange = new AMQPExchange($channel);

try {
    $routing_key = 'Hello_World';
    $queue = new AMQPQueue($channel);
    $queue->setName($routing_key);
    $queue->setFlags(AMQP_NOPARAM);
    $queue->declareQueue();

    $message = 'Hello RabbitMQ World!';
    $exchange->publish($message, $routing_key);
    echo " [x] Sent 'Hello_World'\n";
    $connection->disconnect();
}
catch (Exception $ex) {
    print_r($ex);
}

?>

ubuntu@dlp:~$

php send_msg.php

 [x] Sent 'Hello_World'

[3]	This is an example of receiving message on PHP.

ubuntu@node01:~$

vi receive_msg.php

<?php

$connection = new AMQPConnection();
$connection->setHost('10.0.0.30');
$connection->setVhost('/my_vhost');
$connection->setLogin('serverworld');
$connection->setPassword('password');
$connection->connect();

$channel = new AMQPChannel($connection);
$exchange = new AMQPExchange($channel);

$callback_func = function(AMQPEnvelope $message, AMQPQueue $q) use (&$max_consume) {
    echo " [x] Received ", $message->getBody(), PHP_EOL;
    $q->nack($message->getDeliveryTag());
    sleep(1);
};

try {
    $routing_key = 'Hello_World';
    $queue = new AMQPQueue($channel);
    $queue->setName($routing_key);
    $queue->setFlags(AMQP_NOPARAM);
    $queue->declareQueue();
    echo ' [*] Waiting for messages. To exit press CTRL+C ', PHP_EOL;
    $queue->consume($callback_func);
}
catch(AMQPQueueException $ex) {
    print_r($ex);
}
catch(Exception $ex){
    print_r($ex);
}

echo 'Close connection...', PHP_EOL;
$queue->cancel();
$connection->disconnect();

?>

ubuntu@node01:~$

php receive_msg.php

 [*] Waiting for messages. To exit press CTRL+C
 [x] Received Hello RabbitMQ World!

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