YII数据库查询

$userModel = User::Model(); $userModel-count(); $userModel-count($condition); $userModel-count($condition, $params); $userModel-countByAttributes($attributes); $userModel-countByAttributes($attributes, $condition); $userModel-countByAttrib

        $userModel = User::Model();

        $userModel->count();        $userModel->count($condition);        $userModel->count($condition, $params);        $userModel->countByAttributes($attributes);        $userModel->countByAttributes($attributes, $condition);        $userModel->countByAttributes($attributes, $condition, $params);        $userModel->countBySql($sql);        $userModel->countBySql($sql, $params);              //  $userModel = User::Model();        $userModel->find();        $userModel->find($condition);        $userModel->find($condition, $params);                $userModel->findByPk($pk);        $userModel->findByPk($pk, $condition);        $userModel->findByPk($pk, $condition, $params);        $userModel->findByAttributes($attributes);        $userModel->findByAttributes($attributes, $userModel);        $userModel->findByAttributes($attributes, $userModel, $params);                $userModel->findBySql($sql);        $userModel->findBySql($sql, $params);        //返回值为对象数组，若为空则返回ＮＵＬＬ，为一条记录        $findResult = $userModel->find('islock = :islock and phone_status=:phone_status',array(':islock' => 1,':phone_status'=>1));        echo $findResult -> phone_status."<br />";        var_dump($findResult->attributes);        if($userModel->find('user_id=260')){            echo 'find';        }else{            echo 'no find';        }

参数解释：上面均返回一条记录 如果要返回多条数据findALL类似的

$condition 是一般sql里面where子句，一个字符窜

$params 是一个数组，为占位符赋值

查询出来所有数据：

        $userinfo= $userModel->findAllByAttributes(array('islock'=>1,'phone_status' => 0));        foreach($userinfo as $k => $v){            echo $v->user_id."  ".  $userinfo[$k][user_id]."<br />";        }

可见，结果是一个二维数组。

讲CDbcriteria和Model对象进行结合

        $criteria = new CDbCriteria;         if($condition) $criteria->condition = $condition;        $criteria->offset = $offset;        if($order) $criteria->order = $order;        if($limit!="ALL") $criteria->limit = $limit;        if(!empty($more_criteria)){            $criteria->mergeWith($more_criteria);        }        $Model = new $modelName;        if(!empty($with_array)){            $result = $Model->with<strong style="color:transparent">来2源gaodaima#com搞(代@码&网</strong>($with_array)->findAllByAttributes($attributes,$criteria);        }else{            $result = $Model->findAllByAttributes($attributes,$criteria);        }

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