Question

这是Crudcontroller

            /**
             * This controller is designed for managing image file uploads.
             */
            class CrudController extends AbstractActionController 
            {
               /**
               * Entity manager.
               * @var Doctrine\ORM\EntityManager
               */
              private $entityManager;
              /**
                 * Image manager.
                 * @var Application\Service\PicManager;
                 */
              private $picManager;

                /**
                 * Constructor.
                 */
                public function __construct($entityManager, $picManager)
                {
                    $this->entityManager = $entityManager;
                    $this->picManager = $picManager;
                }

                /**
                 * This is the default "index" action of the controller. It displays the 
                 * Image Gallery page which contains the list of uploaded images.
                 */
                public function indexAction() 
                {
                    //$form = new AddForm();
                    //return new ViewModel(['form' => $form]);
                    // Get the list of already saved files.
            //$files = $this->picManager->getSavedFiles();
            $pic = $this->entityManager->getRepository(Pic::class)->findAll();
            return new ViewModel(['pic' => $pic]);
             }

                /**
                 * This action shows the image upload form. This page allows to upload 
                 * a single file.
                 */
                public function uploadAction() 
                {
                    // Create the form.
                    $form = new AddForm();
                    // Check whether this post is a POST request.
                    if ($this->getRequest()->isPost()) {
                        // Get POST data.
                        $data = $this->params()->fromPost();
                        // Fill form with data.
                        $form->setData($data);
                        if ($form->isValid()) {
                            // Get validated form data.
                            $data = $form->getData();}

                            // Use post manager service to add new post to database. 
                         $img_name = $data['file']['name'];
                         $url = $_SERVER['HTTP_SERVER'];
                         $seg= explode('/',$url);
                         $path = $seg[0].'/'.$seg[1].'/'.$seg[2].'/'.$seg[3];
                         $full_url = $path.'/'.'public'.'/'.'img'.'/'.$img_name;
                         $data['file']['tmp_name'] = $full_url;
                         $value = [
                      'name' => $data['file']['name'],
                      'avatar' => $data['file']['tmp_name'],
                                ];
                          $this->picManager->addNewImage($data);
                           return $this->redirect()->toUrl('http://projecting.localhost/images');
                    }
                return new ViewModel([
                        'form' => $form
                    ]);
                }

            }

这是我的upload.phtml视图文件

        <?php
        $this->headTitle('Upload a New Image');
        $form = $this->form;
        //$form->setAttribute('action',$this->url('crud',['action' => 'add']));

        //$form->get('submit')->setAttributes(['class'=>'btn btn-primary']);
        $form->prepare();
        ?>
        <h1>Upload a New Image</h1>
        <p>
            Please fill out the following form and press the <i>Upload</i> button.
        </p>
        <div class="row">
            <div class="col-md-6">
                <?= $this->form()->openTag($form); ?>
                <div class="form-group">
                    <?= $this->formLabel($form->get('name')); ?>
                    <?= $this->formElement($form->get('name')); ?>
                    <?= $this->formElementErrors($form->get('name')); ?>
                </div>
                <div class="form-group">
                    <?= $this->formLabel($form->get('avatar')); ?>
                    <?= $this->formElement($form->get('avatar')); ?>
                    <?= $this->formElementErrors($form->get('avatar')); ?>
                </div>        
                <?= $this->formElement($form->get('submit')); ?>
                <?= $this->form()->closeTag(); ?>
            </div>    
        </div>
        <div class="row">
        <table class="table table-hover">
          <thead>
            <tr>
              <th scope="col">Type</th>
              <th scope="col">Image Id</th>
              <th scope="col">Image Name</th>
              <th scope="col">Image Avatar</th>
            </tr>
          </thead>
          <tbody>
              <?php foreach($pic as $pic):?>
         <tr>
          <th> <h3><?= $this->escapeHtml($pic->getId()); ?>  </h3></th>
          <td></td>
          <td></td>
          <td></td>
        </tr>
             <?php endforeach; ?>
          </tbody>
        </table>
        </div>

我遇到此错误

注意：未定义的变量：第41行中的C：\ xampp \ htdocs \ form \ module \ Crud \ view \ crud \ crud \ upload.phtml中的图片

警告：第41行的C：\ xampp \ htdocs \ form \ module \ Crud \ view \ crud \ crud \ upload.phtml中为foreach（）提供的参数无效

如何在zend框架中定义变量？
如何清除未定义变量的zend框架中的错误？我试图解决zend框架中的问题，但仍未解决显示未定义的内容是什么？我试图用谷歌搜索错误但没有得到答案我在控制器和经理中也定义了变量如果需要更多代码，我会帮助我试图将变量从控制器传递给视图，但没有结果预先感谢

Answer 1

尝试在$this->pic文件中使用.phtml代替$ pic。

<?php foreach($this->pic as $pic):?>

如果您是根据渲染文件的相对动作在“ pic”键中设置数据，则此方法有效。

Answer 2

请尝试以下代码：

             <?php if (isset($this->pic) && ! empty($this->pic)) : ?>

                  <?php foreach($this->$pic as $pic):?>
                     <tr>
                      <th> <h3><?= $this->escapeHtml($pic->getId()); ?>  </h3></th>
                      <td></td>
                      <td></td>
                      <td></td>
                    </tr>
                 <?php endforeach; ?>

             <?php endif; ?>

注意：未定义的变量：zendframework 3中的pic

2 个答案: