Description:
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I'm using PHP 5.4beta4 and RabbitMQ 2.8.4. I've noticed that if I use a script that has a consume() method, and doesn't explicitly ack, and then kill off the script, it clears the queue.

Test script:
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<?php

// Create a connection
$cnn = new AMQPConnection();
$cnn->connect();

// Create a channel
$ch = new AMQPChannel($cnn);

// Declare a new exchange
$ex = new AMQPExchange($ch);
$ex->setName('new_topic_exchange');
$ex->setType(AMQP_EX_TYPE_DIRECT);
$ex->setFlags(AMQP_DURABLE | AMQP_AUTODELETE);
$ex->declare();

// Create a new queue
$q = new AMQPQueue($ch);
$q->setName('queue1');
$q->declare();

// Bind it on the exchange to routing.key
$q->bind('new_topic_exchange', 'routing.key');

// Publish a message to the exchange with a routing key
$ex->publish('message', 'routing.key');

// Read from the queue
$q->consume('var_dump');

Expected result:
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I expect that since I'm not ack-ing the result, the results shouldn't be purged from the queue.

Actual result:
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ALL messages are actually purged from the queue.