Максим Тимофеев

echo FileInput::widget([
    'name' => 'attachment_49[]',
    'options'=>[
        'multiple'=>true
    ],
    'pluginOptions' => [
        'initialPreview'=>[
            "http://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/FullMoon2010.jpg/631px-FullMoon2010.jpg",
            "http://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Earth_Eastern_Hemisphere.jpg/600px-Earth_Eastern_Hemisphere.jpg"
        ],
        'initialPreviewAsData'=>true,
        'initialCaption'=>"The Moon and the Earth",
        'initialPreviewConfig' => [
            ['caption' => 'Moon.jpg', 'size' => '873727'],
            ['caption' => 'Earth.jpg', 'size' => '1287883'],
        ],
        'overwriteInitial'=>false,
        'maxFileSize'=>2800
    ]
]);

$this->registerJs("
    $('#city_modal_forma').on('pjax:end', function() {
            $('#ajax-form').modal('hide');
            $.pjax.reload({container:'#city_dropdown'});
        });       
    ");

[['name' , 'email'], 'required', 'message' => 'имя не введено'],

[['name'], 'required', 'message' => 'имя не введено'],
[['email'], 'required', 'message' => 'email не введен'],