PHP錯誤：陣列對象轉換成關聯數組

Question

我正在使用笨3.

每當編輯記錄和數據是無效一個 CRUD應用程序，而不是僅僅示出了驗證錯誤消息，該瀏覽器輸出消息：Trying to get property of non-object。在控制器內

我的更新功能如下：

public function update($customer_id) { 
    // data validation 
    $this->form_validation->set_rules('first_name', 'First name', 'required'); 
    $this->form_validation->set_rules('last_name', 'Last name', 'required'); 
    $this->form_validation->set_rules('email', 'Email address', 'required|valid_email'); 
    $this->form_validation->set_rules('phone', 'Phone number', 'required'); 
    $this->form_validation->set_rules('country', 'Country', 'required'); 
    $this->form_validation->set_error_delimiters('<p class="error">', '</p>'); 

    if ($this->form_validation->run()) { 
     $data = [ 
     // insert into these database table fields 
     'first_name' => $this->input->post('first_name'), 
     'last_name' => $this->input->post('last_name'), 
     'email' => $this->input->post('email'), 
     'phone' => $this->input->post('phone'), 
     'country' => $this->input->post('country'), 
     'city' => $this->input->post('city'), 
     'address' => $this->input->post('address') 
     ]; 
     $this->load->model('Customer'); 
     if ($this->Customer->updateCustomer($customer_id, $data)) { 
      $this->session->set_flashdata('update-response','Customer successfully updated'); 
     } else { 
      $this->session->set_flashdata('update-response','Failed to update customer'); 
     } 
     redirect('home'); 
    } else { 
    $data = [  
     'first_name' => $this->input->post('first_name'), 
      'last_name' => $this->input->post('last_name'), 
      'email' => $this->input->post('email'), 
      'phone' => $this->input->post('phone'), 
      'country' => $this->input->post('country'), 
      'city' => $this->input->post('city'), 
      'address' => $this->input->post('address'), 
     'id' => $customer_id 
    ]; 
    $this->load->view('update', ['customer' => $data]); 
} 
} 

如果在更新表單中的數據是有效的，沒有錯誤。的形式是這樣的：

<?php echo form_open("home/update/{$customer->id}"); ?> 

      <div class="form-group <?php if(form_error('first_name')) echo 'has-error';?>"> 
       <?php echo form_input('first_name', set_value('first_name', $customer->first_name),[ 
        'id' => 'first_name', 
        'class' => 'form-control' 
        ]); 
       if(form_error('first_name')) echo '<span class="glyphicon glyphicon-remove"></span>'; 
       echo form_error('first_name'); ?>          
      </div> 

      <div class="form-group <?php if(form_error('last_name')) echo 'has-error';?>"> 
       <?php echo form_input('last_name', set_value('last_name', $customer->last_name), [ 
        'id' => 'last_name', 
        'class' => 'form-control' 
        ]); 
       if(form_error('last_name')) echo '<span class="glyphicon glyphicon-remove"></span>'; 
       echo form_error('last_name'); ?> 
      </div> 

      <div class="form-group <?php if(form_error('email')) echo 'has-error';?>"> 
       <?php echo form_input('email', set_value('email', $customer->email), [ 
        'id' => 'email', 
        'class' => 'form-control' 
        ]); 
       if(form_error('email')) echo '<span class="glyphicon glyphicon-remove"></span>'; 
       echo form_error('email'); ?> 
      </div> 

      <div class="form-group <?php if(form_error('phone')) echo 'has-error';?>"> 
       <?php echo form_input('phone', set_value('phone', $customer->phone), [ 
        'id' => 'phone', 
        'class' => 'form-control' 
        ]); 
       if(form_error('phone')) echo '<span class="glyphicon glyphicon-remove"></span>'; 
       echo form_error('phone'); ?> 
      </div> 

      <div class="form-group <?php if(form_error('country')) echo 'has-error';?>"> 
       <?php echo form_input('country', set_value('country', $customer->country), [ 
        'id' => 'country', 
        'class' => 'form-control' 
        ]); 
       if(form_error('country')) echo '<span class="glyphicon glyphicon-remove"></span>'; 
       echo form_error('country'); ?> 
      </div> 

      <div class="form-group"> 
       <?php echo form_input('city', set_value('city', $customer->city), [ 
        'id' => 'city', 
        'class' => 'form-control' 
        ]); 
       ?> 
      </div> 

      <div class="form-group"> 
       <?php echo form_input('address', set_value('city', $customer->address), [ 
        'id' => 'address', 
        'class' => 'form-control' 
        ]); 
       ?> 
      </div> 

      <div class="form-group"> 
       <?php echo form_submit('submit', 'Save', 'class = "btn btn-success btn-block"'); ?> 
      </div> 

<?php echo form_close(); ?> 

相信$customer變成關聯數組，這是該錯誤消息的原因：Trying to get property of non-object。但是，這種轉換的原因是什麼？或者是問題的原因完全不同？

Answer 1

But what is causing this conversion?

沒什麼，你傳遞一個數組，你得到一個數組，你試圖訪問像一個對象。

在您的示例中，$data是一個數組，但在您的視圖中，您正在像訪問對象一樣訪問它。

如果你真的想進入它像一個對象，投數組對象：

$this->load->view('update', ['customer' => (object)$data]);