defined('ACC')||exit('Access Denied');

// 配置文件读取类

class conf {

    protected static $ins = null;

    protected $cfg = array('db'=>'java0620');

    public static function getIns() {

        if(self::$ins === null) {

            self::$ins = new self();

        }

        return self::$ins;

    }

    final protected function __construct() {

        require(ROOT . 'include/config.php');

        $this->cfg = $cfg;

    }

    // 根据指定的配置项,返回该配置项的值

    public function __get($k) {

        if(!isset($this->cfg[$k])) {

            return null;

        }

        return $this->cfg[$k];

    }

    // 根据指定的配置项,返回配置项的值

    public function __set($k,$v) {

        $this->cfg[$k] = $v;

    }

}

/*

$conf = conf::getIns();

echo $conf->db,'
';

$conf->db = 'java0620';

echo $conf->db;

*/