php利用成员函数给成员变量赋值或是重置成员变量值

php利用成员函数给成员变量赋值或是重置成员变量值

class bba{
   public $qb_select=array();
    public $qb_from =array();
    public $qb_join=array();
    public $qb_where=array();
    public $qb_groupby=array();
    public $qb_having=array();
    public $qb_orderby=array();
    public $qb_aliased_tables=array();
    public $qb_distinct=false;
    public $qb_limit=false;
    public $qb_offset=false;

    public function _reset_run($qb_select_items)
    {
        foreach($qb_select_items as $items => $default_value)
        {
            $this->$items=$default_value;
        }
    }

    public function _reset_select()
    {
        $this->_reset_run(array(
            'qb_select' =>array(1,2,3),
            'qb_from'   =>array(),
            'qb_join'   => array(),
            'qb_where'  =>array(),
            'qb_groupby' =>array(),
            'qb_having'     =>array(),
            'qb_orderby' =>array(),
            'qb_aliased_tables'=>array(),
            'qb_limit'=>false,
            'qb_distinct'=>false,
            'qb_offset'=>false
        ));
    }

    public function getselect()
    {
        return $this->qb_select;
    }

}
$object=new bba();
$object->_reset_select();
print_r($object->getselect());