Corrected SO class

    <?php

    namespace Revolution;
    if(!defined('IN_INDEX')) { die('Sorry, you cannot access this file.'); }
    class engine
    {
            private $initiated;
            private $connected;

            private $connection;

            final public function Initiate()
            {
                    global $_CONFIG;
                    if(!$this->initiated)
                    {
                            $this->setMySQL('connect', mysql_connect);
                            $this->setMySQL('pconnect', mysql_pconnect);
                            $this->setMysql('select_db', mysql_select_db);
                            $this->setMySQL('query', mysql_query);
                            $this->setMySQL('num_rows', mysql_num_rows);
                            $this->setMySQL('fetch_assoc', mysql_fetch_assoc);
                            $this->setMySQL('fetch_array',mysql_fetch_array);
                            $this->setMySQL('result', mysql_result);
                            $this->setMySQL('free_result', mysql_free_result);
                            $this->setMySQL('escape_string', mysql_real_escape_string);

                            $this->initiated = true;

                            $this->connect($_CONFIG['mysql']['connection_type']);
                    }
            }

            final public function setMySQL($key, $value)
            {
                    $this->mysql[$key] = $value;
            }


            /*-------------------------------Manage Connection-------------------------------------*/

            final public function connect($type)
            {
                    global $core, $_CONFIG;
                    if(!$this->connected)
                    {
                            $_CONFIG['hostname'] = 'localhost';
                            $_CONFIG['username'] = 'root';
                            $_CONFIG['password'] = '***';

                            if (!isset($this->mysql[$type])) {
                                throw new \Exception("MySQL $type is not defined.");
                            } /* MISSING CLOSING BRACKET HERE */

                            if($this->connection)
                            {
                                    $mydatabase = $this->mysql['select_db']($_CONFIG['mysql']['database'], $this->connection);

                                    if($mydatabase)
                                    {
                                            $this->connected = true;
                                    }
                                    else
                                    {
                                            $core->systemError('MySQL Engine', 'MySQL could not connect to database');
                                    }
                            }
                            else
                            {
                                    $core->systemError('MySQL Engine', '<b>Remote Server:</b> The remote server seems to be offline, odd, it\'s being looked into.');
                                    //$core->systemError('MySQL Engine', 'MySQL could not connect to host');
                            }
                    }
            }

            final public function disconnect()
            {
                    global $core;
                    if($this->connected)
                    {
                            if($this->mysql['close'])
                            {
                                    $this->connected = false;
                            }
                            else
                            {
                                    $core->systemError('MySQL Engine', 'MySQL could not disconnect.');
                            }
                    }
            }

            /*-------------------------------Secure MySQL variables-------------------------------------*/

            final public function secure($var)
            {
                    return $this->mysql['escape_string'](stripslashes(htmlspecialchars($var)));
            }

            /*-------------------------------Manage MySQL queries-------------------------------------*/

            final public function query($sql)
            {
                    return $this->mysql['query']($sql, $this->connection) or die(mysql_error());
            }

            final public function num_rows($sql)
            {
                    return $this->mysql['num_rows']($this->mysql['query']($sql, $this->connection));
            }

            final public function result($sql)
            {
                    return $this->mysql['result']($this->mysql['query']($sql, $this->connection), 0);
            }

            final public function free_result($sql)
            {
                    return $this->mysql['free_result']($sql);
            }

            final public function fetch_array($sql)
            {
                    $query = $this->mysql['query']($sql, $this->connection);

                    $data = array();

                    while($row = $this->mysql['fetch_array']($query))
                    {
                            $data[] = $row;
                    }

                    return $data;
            }

            final public function fetch_assoc($sql)
            {
                    return $this->mysql['fetch_assoc']($this->mysql['query']($sql, $this->connection));
            }
    }
    ?>