目录
新建控制器 HomeController.php
D:\xampp\htdocs\yii\controllers\HomeController.php
<?php
/**
* Created by Haima.
* Author:Haima
* QQ:228654416
* Date: 2018/9/4
* Time: 06:30
*/
namespace app\controllers;
use app\models\Article;
use yii\web\Controller;
header("Content-Type: text/html;charset=utf-8");
class HomeController extends Controller
{
//用属性的方法定义父模板
//会自动加载D:\phpStudy\WWW\yii\views\layouts\home.php文件
public $layout = 'home';
public function actionIndex()
{
//查一行 主键为2的
// $data = Article::findOne(2); //返回abj
// $data = Article::find()->where(['article_id' => 5])->one(); 返回abj
//查主键为2,3,5的
// $data = Article::findAll([2, 3, 5]); //返回array[0]->abj
// vp($data->article_title);die;
//获取全部数据
// $data = Article::find()->all(); //返回array[0]->abj
//获取单条数据 article_id=5
// $data = Article::find()->where(['article_id' => 5])->all();
//article_id>3
// $data = Article::find()->where(['>', 'article_id', 3])->all();
// 2>=article<=5 在2-5之间的(包含2和5)
// $data = Article::find()->where(['between', 'article_id', 2, 5])->all();
// article_title like 唐诗三百案
// $data = Article::find()->where(['like', 'article_title', '唐诗三百案'])->all();
// 以数组的方式取出
// $data = Article::find()->asArray()->all(); //返回array[0]['article_title']
// 循环分段取出 以数组的方式 每次按三条取出
foreach (Article::find()->asArray()->batch(3) as $v) {
// echo count($v) . '-';
$data[] = $v;
}
dd($data);
die;
//会自动加载父模板 D:\phpStudy\WWW\yii\views\layouts\home.php
return $this->render('index');
}
}
新建model article.php
D:\xampp\htdocs\yii\models\Article.php
<?php
namespace app\models;
use yii\db\ActiveRecord;
class Article extends ActiveRecord
{
}效果:
