PHP mongoDB connection check

PHPMongoDB_ConnectionCheck

<?php
  $dbhost = "mongodb://localhost:27017";
  $dbConnection = new MongoClient($dbhost);
  $db = $dbConnection->test;
  $collection = $db->testData;
  $document = array("name" => "PHP Insert");
  $collection->insert($document);
  $results = $collection->findOne(array("_id" => $document['_id']));
  $resultValue = $results['name'];
  print "Query Results:  $resultValue \n";
?>