php 新手 问题

Question

modelclassStock_modelextendsCI_Model{private$hsh;function__construct(){parent::__construct();$_ci=&get_instance();//$this->hsh=$_ci->load->database('hsh',TRUE);$hsh=$_ci->load->database('hsh',TRUE);}functionget_stock($goods_huo){if(isset($goods_huo)){$hsh->where('item_huo',$goods_huo);$query=$hsh->get('item_info');return$query->result_array();$query->free_result();}}}报错APHPErrorwasencounteredSeverity:NoticeMessage:Undefinedvariable:hshFilename:models/stock_model.phpLineNumber:22Fatalerror:Calltoamemberfunctionwhere()onanon-objectinD:\htdocs\application\models\stock_model.phponline22刚学，很多问题不懂！这是用的CI

Answer 1

//$this->hsh=$_ci->load->database('hsh',TRUE);
$hsh=$_ci->load->database('hsh',TRUE);
Message:Undefinedvariable:hsh
未定义变量hsh
你把$hsh都改为$this->hsh。
随便建议一下，应该把基础打好了再用框架，过早使用框架只会抑制你的成长。
                            

Answer 2

$hsh换成$this->hsh