<?php
/*
* Mysql database class - only one connection alowed
*/
class Database {
    private $_connection;
    private static $_instance; //The single instance
    private $_host = "46.101.140.93:3306";
    private $_username = "uber";
    private $_password = "pass";
    private $_database = "db_signature";
    /*
    Get an instance of the Database
    @return Instance
    */
    public static function getInstance() {
        return new self();
    }

    private function __construct() {
        error_reporting(E_ALL & ~E_WARNING);
        $this->_connection = new mysqli($this->_host, $this->_username,
            $this->_password, $this->_database);

    }

    private function __clone() { }

    public function getConnection() {
        if ($this->__isErrors()) {
            return null;
        }
        else {
            return $this->_connection;
        }

    }

    private function __isErrors() {
        if(mysqli_connect_error()) {
            return true;
        }
        else {
            return false;
        }
    }
}
?>