AMQPQueue::consume
(PECL amqp >= Unknown)
AMQPQueue::consume — Consume messages from a queue
Description
Blocking function that will retrieve the next message from the queue as it becomes available and will pass it off to the callback.
Parameters
-
callback -
A callback function to which the consumed message will be passed. The function must accept at a minimum one parameter, an AMQPEnvelope object, and an optional second parameter the AMQPQueue from which the message was consumed.
The AMQPQueue::consume() will not return the processing thread back to the PHP script until the callback function returns
FALSE. -
flags -
A bitmask of any of the flags:
AMQP_NOACK.
Errors/Exceptions
Throws AMQPChannelException if the channel is not open.
Throws AMQPConnectionException if the connection to the broker was lost.
Return Values
Examples
Example #1 AMQPQueue::consume() example
<?php
/* Create a connection using all default credentials: */
$connection = new AMQPConnection();
$connection->connect();
$channel = new AMQPChannel($connection);
/* create a queue object */
$queue = new AMQPQueue($channel);
//declare the queue
$queue->declare('myqueue');
$i = 0;
function processMessage($envelope, $queue) {
global $i;
echo "Message $i: " . $envelope->getBody() . "\n";
$i++;
if ($i > 10) {
// Bail after 10 messages
return false;
}
}
// Consume messages on queue
$queue->consume("processMessage");
?>
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