Foreach-Schleife wird nicht eingegeben

Question

Ich verwende einen ähnlichen Code in zwei yii-Projekten. Das eine funktioniert ganz gut, das andere nicht. Foreach-Loop wird nicht eingegeben, obwohl die Methode funktioniert. Irgendwelche Ideen, wie das zu beheben? Mein Modell:

<?php 
namespace app\models; 

use Yii; 
use yii\base\Model; 
use kartik\widgets\Growl; 

class myScriptForm extends Model { 


    public $fileImage; 

    public function rules() { 
     return [ 
      [['fileImage'], 'file', 'skipOnEmpty' => false, 'maxFiles' => 3], 
      ['fileImage', 'required'], 
     ]; 
    } 

    public function attributeLabels() { 

     return ['fileImage' => 'Image']; 
    } 

    public function upload() { 
     echo Growl::widget([ //This output will be shown 
       'type' => Growl::TYPE_SUCCESS, 
       'title' => 'Well done!', 
       'icon' => 'glyphicon glyphicon-ok-sign', 
       'body' => 'File(s) successfully uploaded<br> It is available in folder uploadedfiles', 
       'showSeparator' => true, 
       'delay' => false, 
       'pluginOptions' => [ 
        'showProgressbar' => true, 
        'placement' => [ 
         'from' => 'top', 
         'align' => 'center', 
        ] 
       ] 
      ]); 
     foreach ($this->fileImage as $uploaded_file) { 
      echo Growl::widget([ //This output will not be shown -WHY?? 
       'type' => Growl::TYPE_SUCCESS, 
       'title' => 'Well done!', 
       'icon' => 'glyphicon glyphicon-ok-sign', 
       'body' => 'File(s) successfully uploaded<br> It is available in folder uploadedfiles', 
       'showSeparator' => true, 
       'delay' => false, 
       'pluginOptions' => [ 
        'showProgressbar' => true, 
        'placement' => [ 
         'from' => 'top', 
         'align' => 'center', 
        ] 
       ] 
      ]); 
      $uploaded_file->saveAs(Yii::getAlias('@uploadedfilesdir') . '/' . $uploaded_file->baseName . '.' . $uploaded_file->extension); 
     } 
     return true; 
    } 

} 

//End of class 
?> 

Mein Controller:

public function actionScript() { //A new method, programmed by Thomas Kipp 
     try { 
      $model = new myScriptForm(); 
     } catch (InvalidParamException $error) { 
      throw new BadRequestHttpException($error->getMessage()); 
     } 
     if ($model->load(Yii::$app->request->post())) { 
      $model->fileImage = UploadedFile::getInstances($model, 'fileImage'); 
      if ($model->upload()) { 
       return $this->render('myScript', ['model' => $model]); 
      } 
     } 
     return $this->render('myScript_Formular', ['model' => $model]); 
    } 

Und meine Ansicht:

<?= $form->field($model, 'fileImage[]')->fileInput(['multiple' => true,])->label('Uploadfile(s)') ?> 

Answer 1

$this->fileImage ist wahrscheinlich leer, weil Sie die Eingabe nicht validieren.