下拉框Option处理操作

`function getOption($list,$id,$key,$value,$default='顶级'){

     $htmls = array();

     $htmls[] = "<option value = '0' >".$default."</option>"；

     foreach ($list as $key=>$value){

        $selected = "";

        if($v[$key]==$id)$seleected = "selected";

        $htmls = "<option value = '."$v[$key]".'".$selected.">".''$v[$value]."</option>";

      }

       return join("\n",$htmls);

    }

 function  getTypeOptions($obj){

    $default = empty($obj->default)?'请选择类型'：$obj->default;

    $list = M('goods_type')->field('type_id','type_name')->where('enabled=1')->select();

    $htmlOptions = getOption($list,$obj->id,'type_id','type_name',$default) ;

    return $htmlOptions;

   }`