<?php

namespace Core\Config;

const DBHOST = 'localhost';
const DBNAME = 'foo';
const DBUSER = 'bar';
const DBPASS = 'foobar';

namespace Core\Data\Connection;

class Engine {

    protected static $DBConn = false;
    protected static $DBOpen = false;
    protected static $DBHost = \Core\Config\DBHOST;
    protected static $DBName = \Core\Config\DBNAME;
    protected static $DBUser = \Core\Config\DBUSER;
    protected static $DBPass = \Core\Config\DBPASS;

    public static function connect() {
        if (self::$DBConn =
            mysql_connect(self::$DBHost, self::$DBUser, self::$DBPass)) {
            if (self::$DBOpen =
                mysql_select_db(self::$DBName, self::$DBConn)) {
                return self::$DBOpen;
            } else die(mysql_error());
        } else die(mysql_error());
    }

    public static function close() {
        if (self::$DBConn) {
            if (self::$DBConn =
                mysql_close(self::$DBConn)) {
                self::$DBOpen = false;
                return self::$DBConn;
            } else die(mysql_error());
        }
    }

    public static function isConnected() {
        return self::$DBOpen;
    }
}

namespace Core\Data\Migration;

class Engine {
    public static function debug() {
        return __METHOD__;
    }
}