MongoDB App for Connecting and Querying a DB

controller.php

<?php
	class Controller {
		protected $database;

		public function __construct(Mongo $mongo = null, $database = 'teamomattic') {
			if (null === $mongo) {
				$mongo = new Mongo();
			}

			$this->db = $mongo->selectDB($database)->users;
		}
	}

?>

index.php

<?php
require ('classes/mongo/controller.php');
require ('classes/mongo/query.php');
	
$mongo = new Controller;
$mongoQuery = new QueryMongo;

$connect = $mongoQuery->Database('username', 'Bioshox'); 
?>

query.php

<?php
class QueryMongo extends Controller{
	function Database($property, $find){
	
		$rangeQuery = array($property => $find);
		$cursor = $this->db->find($rangeQuery);
		
		foreach ($cursor as $doc){
			echo $doc[''.$property.''];
		}
		
	}
}
?>