pfhwyigou/wechat/controllers/GroupController.php

<?php

namespace wechat\controllers;

use wechat\base\CommonController;

class GroupController extends  CommonController{


    public function actionHome()
    {
        return $this->render('home');
    }

    public function actionDetails()
    {
        return $this->render('details');
    }
	
	public function actionAa()
    {
    	$p = \common\model\CategoryCity::find()->select(['id','city_name'])->andWhere(['del'=>1])->andWhere(['pid'=>0])->asArray()->all();
    	$p = array_column($p,'id','city_name');
    	$son = \common\model\CategoryCity::find()->select(['id','city_name'])->andWhere(['del'=>1])->andWhere(['pid'=>$p])->asArray()->all();	
    	$sonArr = [];
    	foreach ($son as $key => $value) {
    		$sonArr[$value['pid']][] = $value;
    	}

    	p($sonArr);
    }


}