Messages
Publish/Subscribe and suscriptions to topics
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PHP Manual

## Messaging operations

All messaging operations are performed through calls to methods on the connection object. To add a message to a queue the "send" method is used, to obtain a message from a queue the "receive" method is used. Other methods provide publish and subscribe functionality and control of transaction boundaries.

Beispiel #1 Adding a message to a queue and receiving a response

`<?php
$msg = new SAMMessage('This is a simple text message');
$msg->header->SAM_REPLY_TO = 'queue://receive/test';
$correlid = $conn->send('queue://send/test', $msg);
if (!$correlid) {
// The Send failed!
echo "Send failed ($conn->errno) $conn->error";
} else {
$resp = $conn->receive('queue://receive/test', array(SAM_CORRELID => $correlid));
}
?>`

Messages
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PHP Manual