How to make multiple upload files in Yii2?

Question

Yii

How to make multiple upload files in yii2? I found solutions to this problem, but there it was solved through the model, but I need it through the controller.
Here is my code

public function actionAdd_damage(){
        $postDamage = new Damage_list();
        if($postDamage->load(Yii::$app->request->post()) && $postDamage->validate()){
            $imageDamage = UploadedFile::getInstance($postDamage, 'photo');
            $postDamage->photo = 'uploads/'.md5($imageDamage->baseName).'.'.$imageDamage->extension;
            if($postDamage->save()){
                $imageDamage->saveAs($postDamage->photo);
                Yii::$app->getSession()->setFlash('message', 'Post published successfull');
                return $this->redirect(['site/table']);
            }
            else{
                Yii::$app->getSession()->setFlash('message', 'Failed to post');
            }
        }
        return $this->render('add_damage', ['postDamage' => $postDamage]);
    }

<?=$form->field($postDamage, 'photo[]')->fileInput('multiple'=>true)?>

private $date;
    private $description;
    private $photo;
    private $compence;
    private $come;

    public function rules()
    {
        return [
            ,
            [['photo'], 'file', 'extensions' => 'png, jpg, pdf', 'maxFiles' => 10, 'skipOnEmpty'=>false]
        ];
    }

Answer 1

Good afternoon.
The controller is called a controller because it should control, and not perform something ...))) This is a rough explanation, but ...
What exactly is not working for you, add to your question.
And replace the line
on the

$imageDamage = UploadedFile::getInstances($postDamage, 'photo');

Answer 2

slo_nik , so he stopped writing to the database at all