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) ?> <?= Html::a('Ajouter', ['create'], ['class' => 'btn btn-success']) ?> <?= Html::a('<span class="glyphicon glyphicon-envelope"></span> Liste des emails', ['mail'], ['class' => 'btn btn-default']) ?></h1>

    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'columns' => [
            'nom',
            'prenom',
            'telephone',
            'email',
            [
                'class' => 'yii\grid\ActionColumn',
                'template' => '{update} {delete}',
                'headerOptions' => ['class' => 'actions'],
                'buttons' => [
                    'update' => function ($url, $model) {
                        return Html::a('<span class="glyphicon glyphicon-pencil"></span> Modifier', $url, [
                                    'title' => Yii::t('app', 'Modifier'), 'class' => 'btn btn-default'
                        ]);
                    },
                    'delete' => function ($url, $model) {
                        return Html::a('<span class="glyphicon glyphicon-trash"></span> Suprimer', $url, [
                                    'title' => Yii::t('app', 'Supprimer'), 'class' => 'btn btn-default'
                        ]);
                    }
                ],
            ],
        ],
    ]); ?>

</div>