Help me "get" Object Orientated PHP

I'm a reasonably decent PHP programmer but I just don't "get" the object orientated side and it's high time I sorted it out. This may not be worth 500 points but I thought I'd try anyway.

In the code snippet I have some code I've written to pull some info from a mongoDB. I realised I've used some classes in there but I haven't constructed any - they're just what the MongoDB driver provides.
In the foreach loop I have some variables that are printed out from the MongoDB. I'd like to make that foreach loop a class so that I can call something like:

print->Environment
print->Architecture

which makes it nice and clean and simple. I figure if someone can help me create a class from something I've already written it might help me "get" classes and objects. All help gratefully considered.

$gethost=$_GET['q'];
try {
  // open connection to MongoDB server
  $conn = new Mongo('cbb-cs03-bt26-17');

  // access database
  $db = $conn->factdb;

  //authenticate
  $db->authenticate('username','password');

  // access collection
  $collection = $db->hosts;

  // define what to find
  $host = array(
        'host' => $gethost
);
  // disconnect from server
  $conn->close();
} catch (MongoConnectionException $e) {
  die('Error connecting to MongoDB server');
} catch (MongoException $e) {
  die('Error: ' . $e->getMessage());
}


 $cursor = $collection->find($host);
  foreach ($cursor as $value) {
          echo '<tr><td><b>Environment</b></td><td>'.$value['facter']['environment']['value'].'</td><td>'.date("M j Y",$value['facter']['environment']['created_at']).'</td><td>'.date("M j Y",$value['facter']['environment']['updated_at']).'</td></tr>';
  echo '<tr><td><b>FQDN</b></td><td>'.$value['facter']['fqdn']['value'].'</td><td>'.date("M j Y",$value['facter']['fqdn']['created_at']).'</td><td>'.date("M j Y",$value['facter']['fqdn']['updated_at']).'</td></tr>';
  echo '<tr><td><b>Model</b></td><td>'.$value['allocations']['model']['value'].'</td><td>'.date("M j Y",$value['allocations']['model']['created_at']).'</td><td>'.date("M j Y",$value['allocations']['model']['updated_at']).'</td></tr>';



}

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