Acknowledge the receipt of a message

AMQPQueue::ack

(PECL amqp >= Unknown)

AMQPQueue::ack — Acknowledge the receipt of a message

Description

public bool AMQPQueue::ack ( int $delivery_tag [, int $flags = AMQP_NOPARAM ] )

This method allows the acknowledgement of a message that is retrieved without the AMQP_AUTOACK flag through AMQPQueue::get() or AMQPQueue::consume()

Parameters

delivery_tag: The message delivery tag of which to acknowledge receipt.
flags: The only valid flag that can be passed is AMQP_MULTIPLE.

Errors/Exceptions

Throws AMQPChannelException if the channel is not open.

Throws AMQPConnectionException if the connection to the broker was lost.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 AMQPQueue::ack() example with AMQPQueue::get()


<?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');

//get the next message, but don't mark it as delivered
$message = $queue->get(AMQP_NOPARAM);

echo $message['msg'];

//acknowledge the message as received
$queue->ack($message['delivery_tag']);

?>

Example #2 AMQPQueue::ack() example with AMQPQueue::consume()


<?php

/* Create a connection using all default credentials: */
$connection = new AMQPConnection();
$connection->connect();

/* create a queue object */
$queue = new AMQPQueue($connection);

//declare the queue
$queue->declare('myqueue');

$options = array(
    'min' => 1,
    'max' => 10,
    'ack' => false
);

//get the messages, but don't mark them as delivered
$messages = $queue->consume($options);

foreach ($messages as $message) {
    echo $message['message_body'];
    //acknowledge the message as received
    $queue->ack($message['delivery_tag']);
}

?>