Yii2 - list every post - coding error - php

Question

I am new in Yii2 and I made a site where i can write posts, view them, delete them etc...
I want to list every post from a DB on one page as a "timeline"
My code does not list any error simply just show the very first record only.
Here is my code from (views) index.php
<?php
use yii\helpers\Html;
use yii\widgets\ListView;
/* #var $this yii\web\View */
/* #var $searchModel frontend\models\search\TweetSearch */
/* #var $dataProvider yii\data\ActiveDataProvider */
$this->title = 'My tweets';
?>
<div class="tweet-model-index">
<h1 class="text-center"><?= Html::encode($this->title) ?></h1>
<p class="text-center">
<?= Html::a('New Tweet', ['create'], ['class' => 'btn btn-success']) ?>
</p>
<?php
$con = \Yii::$app->db;
$sql = $con->createCommand("SELECT * FROM tweet ORDER BY created_at DESC");
$tweets = $sql->queryAll();
if(!$tweets)
echo '<h2> This is empty </h2>';
else{
foreach($tweets as $tweet){
?>
<hr>
<div class="container-fluid">
<div class="col-md-8 col-md-offset-2">
<h2 class="text-left">
<?php echo $tweet['tweet_title']; ?>
<br><small>Author: <b><?php echo $tweet['author_id'];?> </b>Created at: <b><?php echo date(($tweet['created_at']));?></b>
<br>Updated at: <b><?php echo date(($tweet['updated_at']));?>
</small>
</h2>
<p class="text-left">
<?= Html::a('Update', ['update', 'id' => $tweet['tweet_id']], ['class' => 'btn btn-primary']) ?>
<?= Html::a('View', ['view', 'id' => $tweet['tweet_id']], ['class' => 'btn btn-primary']) ?>
<?= Html::a('Delete', ['delete', 'id' => $tweet['tweet_id']], [
'class' => 'btn btn-danger',
'data' => [
'confirm' => 'Are you sure you want to delete this item?',
'method' => 'post',
],
]) ?>
</p>
</div>
</div>
</div>
<?php endforeach; ?>
<?php endif; ?>
May i ask You guys, how can I count the views on each post?
I tried this on my TweetController but doesn't work.
public function actionView($id)
{
$this->render('view',array(
'model'=>$this->loadModel($id));
}

Answer 1

Start using braces!
else
foreach($tweets as $tweet);
?>
to this:
else {
foreach($tweets as $tweet) {
?>
or even better in VIEWS:
else:
foreach($tweets as $tweet):
?>
.....
.....
<?php endforeach; ?>
<?php endif; ?>

Answer 2

update from
$tweets = $sql->query();
to
$tweets = $sql->queryAll();