php get message from rabbitmq error

Question

My amqp extension version is 1.0.1 & AMQP protocol version is 0-9-1

get messages from queue :

<?php
try {
$conn = new AMQPConnection() ;
$conn->setLogin('guest') ;
$conn->setPassword('guest') ;
$conn->connect() ;
if ($conn->isConnected()) {
    $channel = new AMQPChannel($conn) ;
    if ($channel->isConnected())
    {
        $queue = new AMQPQueue($channel) ;
        $queue->setName('test_queue') ;
        $queue->setFlags(AMQP_DURABLE | AMQP_AUTODELETE) ;
        $queue->declare() ;
        $messages = $queue->get(AMQP_AUTOACK) ;
        print_r($messages->getBody()) ;
    }
} else {
    echo "connect failure ... " ;
}
$conn->disconnect() ;} catch (Exception $e) {
echo $e->getMessage() ;}?>

and it doesn't work ..

Server channel error: 406, message: PRECONDITION_FAILED - parameters for queue 'test_queue' in vhost '/' not equivalent

Answer 1

It seems to me that the queue already exists and it was declared (created) previously with different parameters in the vhost. Queues need to be declared exactly with the same parameters every time (or deleted and recreated with the desired parameters). Try deleting the queue via the management plugin (http://www.rabbitmq.com/management.html) and then running your script again