php form ActiveForm begin Html activeDropDownList model site searchMod

<?php $form = ActiveForm::begin(); ?>
	<?= Html::activeDropDownList($model, 'site', $searchModel->id, ['class' => 'selectpicker', 'title' => 'id', 'multiple' => 'multiple']) ?>

    <?//= Html::activeTextInput($model, 'site', ['class' => 'form-control']); ?>
<?php ActiveForm::end(); ?>

    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel' => $searchModel,
        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],

            'id',
            'idsite',
            'site',
            'userbourse',
            'bourse',
            'partner',
            'tic',
            'day_profit',
            'ok',
            'new',
            'error',
            'sleep',
            'time_check',

        ],
    ]); ?>