STOMP_ACK(3)								 1							      STOMP_ACK(3)

Stomp::ack - Acknowledges consumption of a message

       Object oriented style (method):

SYNOPSIS

       public bool Stomp::ack (mixed  $msg, [array  $headers])

DESCRIPTION

       Procedural style:
       bool stomp_ack (resource  $link, mixed  $msg, [array  $headers])

	Acknowledges consumption of a message from a subscription using client acknowledgment.

PARAMETERS

	      o $link
		-Procedural style only: The stomp link identifier returned by stomp_connect(3).

	      o $msg
		- The message/messageId to be acknowledged.

	      o $headers
		-Associative array containing the additional headers (example: receipt).

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

NOTES

       Note

	      A transaction header may be specified, indicating that the message acknowledgment should be part of the named transaction.

       Tip

	      Stomp  is  inherently asynchronous. Synchronous communication can be implemented adding a receipt header. This will cause methods to
	      not return anything until the server has acknowledged receipt of the message or until read timeout was reached.

EXAMPLES

       Example #1

	      Object oriented style

	      <?php

	      $queue  = '/queue/foo';
	      $msg    = 'bar';

	      /* connection */
	      try {
		  $stomp = new Stomp('tcp://localhost:61613');
	      } catch(StompException $e) {
		  die('Connection failed: ' . $e->getMessage());
	      }

	      /* send a message to the queue 'foo' */
	      $stomp->send($queue, $msg);

	      /* subscribe to messages from the queue 'foo' */
	      $stomp->subscribe($queue);

	      /* read a frame */
	      $frame = $stomp->readFrame();

	      if ($frame->body === $msg) {
		  /* acknowledge that the frame was received */
		  $stomp->ack($frame);
	      }

	      /* remove the subscription */
	      $stomp->unsubscribe($queue);

	      /* close connection */
	      unset($stomp);

	      ?>

       Example #2

	      Procedural style

	      <?php

	      $queue  = '/queue/foo';
	      $msg    = 'bar';

	      /* connection */
	      $link = stomp_connect('ssl://localhost:61612');

	      /* check connection */
	      if (!$link) {
		  die('Connection failed: ' . stomp_connect_error());
	      }

	      /* begin a transaction */
	      stomp_begin($link, 't1');

	      /* send a message to the queue 'foo' */
	      stomp_send($link, $queue, $msg, array('transaction' => 't1'));

	      /* commit a transaction */
	      stomp_commit($link, 't1');

	      /* subscribe to messages from the queue 'foo' */
	      stomp_subscribe($link, $queue);

	      /* read a frame */
	      $frame = stomp_read_frame($link);

	      if ($frame['body'] === $msg) {
		  /* acknowledge that the frame was received */
		  stomp_ack($link, $frame['headers']['message-id']);
	      }

	      /* remove the subscription */
	      stomp_unsubscribe($link, $queue);

	      /* close connection */
	      stomp_close($link);

	      ?>

PHP Documentation Group 													      STOMP_ACK(3)