create.php

<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;

/* @var $this yii\web\View */
/* @var $model app\models\Partner */

$this->title = 'Create Partner';
$this->params['breadcrumbs'][] = ['label' => 'Partners', 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="partner-create">

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

    <?= $this->render('_form', [
        'model' => $model,
    ]) ;

    ?>

    <?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>
    <?= $form->field($model, 'file')->fileInput() ?>
    <button>Отправить</button>
    <?php ActiveForm::end() ?>


</div>