删除optgroup标签＆＃34; 0＆＃34;在表格下拉菜单中使用Codeigniter

Question

       $select = array(
       'Select Customer' => 'Select Customer',
         $customer_id
            );

        echo form_dropdown(array('name' =>'customer_id' )  , $select);

我想添加＆＃39;选择客户＆＃39;在选择之前，但有＆＃34; 0＆＃34;在下拉列表中。如何删除它？

Answer 1

https://www.codeigniter.com/user_guide/helpers/form_helper.html#form_dropdown

当您可以使用控制器和型号更新问题时。

在您的控制器或型号代码中，您可能会[]导致optgroup显示。

代码示例

$this->load->helper('form');

$customer[] = array(
  '0' => 'Select Customer',
  '1' => 'John',
  '2' => 'Matthew',
  '3' => 'Luke'
);

$data['customer'] = $customer;

$this->load->view('someview', $data);

查看

<?php echo form_dropdown('name', $customer, '', array('class' => 'form-control'));?>

  

删除[]会删除optgroup 0

代码示例

$this->load->helper('form');

$customer = array(
  '0' => 'Select Customer',
  '1' => 'John',
  '2' => 'Matthew',
  '3' => 'Luke'
);

$data['customer'] = $customer;

$this->load->view('someview', $data);

查看

<?php echo form_dropdown('name', $customer, '', array('class' => 'form-control'));?>