slim mongo dbConnect

dbConnect.php

<?php
class dbConnect {
  private $con;
  private $db;
  
  function __construct() {}
  
  //connect to MongoDB function
  function connect() {
    include_once dirname(__FILE__) . '/config.php';
    try {
      //connect to Mongo with default setting
      $this->con = new MongoClient();
      //connect to database
      $this->db = $this->con->selectDB(DB_NAME);
    }
    catch (MongoConnectionException $e) {
      echo "Cannot Connect to MongoDB";
    }
    return $this->db;
  }
}
?>