PHP Example: Difference between revisions

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==PECL Stomp Extension Example==
#REDIRECT [[PHP_Examples]]
 
Requires [http://pecl.php.net/package/stomp PECL STOMP] package (just type "pecl install stomp" in the command line).
 
 
<code>
<?php
// Network Rail Stomp Handler example by ian13
$server = "tcp://datafeeds.networkrail.co.uk:61618";
$user = "username";
$password = "password";
$channel = "TRAIN_MVT_ALL_TOC";
$con = new Stomp($server, $user, $password);
if (!$con) {
    die('Connection failed: ' . stomp_connect_error());
}
$con->subscribe("/topic/" . $channel);
while($con){
    if ($con->hasFrame()){
        $msg = $con->readFrame();
        foreach (json_decode($msg->body) as $event) {
          // do stuff with $event here
        }
        $con->ack($msg);
    }
}
die('Connection lost: ' . time());
?>
</code>
 
You can additionally use a client-id header.
This means if you disconnect, when you reconnect, the server should resend the messages that you missed whilst offline.
<code>
$con = new Stomp($server, $user, $password, array('client-id' => 'somename');
</code>
 
Further Documentation: http://www.php.net/manual/en/class.stomp.php
 
===STOMP LIbrary===
 
The Stomp Client from [http://stomp.fusesource.org/download.html Fuse Source]. It has some minor issues, it injects spaces in the username/password and sleeps on message retrieval.
An adjusted version can be grabbed from [http://mail-archives.apache.org/mod_mbox/activemq-users/201103.mbox/%3CAANLkTinetbR6w-CFzJ+q-Xk3p1xkkr3BzYBcxDAU8VPO@mail.gmail.com%3E here] or [http://mail-archives.apache.org/mod_mbox/activemq-users/201103.mbox/raw/%3CAANLkTinetbR6w-CFzJ+q-Xk3p1xkkr3BzYBcxDAU8VPO@mail.gmail.com%3E here]
 
<code>
  require_once('Stomp.php');
 
  $con = new Stomp('tcp://datafeeds.networkrail.co.uk:61618/');
  $con->clientId = 'someclient';
  $con->connect($username, $password);
 
  $con->subscribe("/topic/TRAIN_MVT_ALL_TOC");
  $msg = $con->readFrame();
 
  if ($msg != null) {
    foreach (json_decode($msg->body) as $event) {
      // do stuff with $event here
    }
    $con->ack(msg);
  }
 
  $con->disconnect();
</code>

Latest revision as of 17:52, 9 July 2013

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