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<mqseries Functionsmqseries_begin>
^mqseries FunctionsLast updated: Mon, 26 Oct 2026

mqseries_back

(PECL mqseries >= 0.10.0)

mqseries_back — MQSeries MQBACK

Description

function mqseries_back(resource $hconn, resource &$compCode, resource &$reason): void

The mqseries_back() (MQBACK) call indicates to the queue manager that all the message gets and puts that have occurred since the last syncpoint are to be backed out. Messages put as part of a unit of work are deleted; messages retrieved as part of a unit of work are reinstated on the queue.

Using mqseries_back() only works in conjunction with mqseries_begin() and only function when connecting directly to a Queueu manager. Not via the mqclient interface.

Parameters

hConn

Connection handle.

This handle represents the connection to the queue manager.

compCode

Completion code.

reason

Reason code qualifying the compCode.

Return Values

No value is returned.

Examples

Example #1 mqseries_back() example

<?php
    mqseries_back($conn, $comp_code, $reason);

    if ($comp_code !== MQSERIES_MQCC_OK) {
        printf("CompCode:%d Reason:%d Text:%s<br>\n", $comp_code, $reason, mqseries_strerror($reason));
    }
?>

Notes

Note:

mqseries_back() will not function when using MQSeries Client to connect to a Queueu Manager.

See Also


<mqseries Functionsmqseries_begin>
^mqseries FunctionsLast updated: Mon, 26 Oct 2026