Souke/backend/views/user/index.php

<?php

use yii\helpers\Html;
use yii\grid\GridView;

/* @var $this yii\web\View */
/* @var $dataProvider yii\data\ActiveDataProvider */

$this->title = 'Utilisateurs';
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="user-index">

    <h1><?= Html::encode($this->title) ?></h1>

    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'columns' => [
            'nom',
            'prenom',
            'telephone',
            'email'
        ],
    ]); ?>

</div>