php codeigniter - 表单助手 - 如何在 radio 输入上实现 set_value

Question

我正在使用 codeigniters 表单助手为我的网站设置反馈表单。

我的表单已创建并已实现验证，一切正常。

我唯一的问题是添加 set_value() 函数以在发生错误时重新填充表单。

我无法让它在我的 radio 输入上工作，如何将 set_value() 函数添加到 radio 类型。

代码:

      <ul> 
          <li><?php echo form_radio('found_by', 'newspaper_advert', set_value('found_by')); ?> Newspaper advert</li>
          <li><?php echo form_radio('found_by', 'press_release', set_value('found_by')); ?> Press release</li>
          <li><?php echo form_radio('found_by', 'text_message', set_value('found_by')); ?> Text message</li>
          <li><?php echo form_radio('found_by', 'email', set_value('found_by')); ?> Email</li>
          <li><?php echo form_radio('found_by', 'refferal', set_value('found_by')); ?> Referred to by a friend</li>
          <li><?php echo form_radio('found_by', 'telemarketing', set_value('found_by')); ?> Telemarketing</li>
          <li><?php echo form_radio('found_by', 'leaflet_flyer', set_value('found_by')); ?> Leaflet or flyer</li>
          <li><?php echo form_radio('found_by', 'radio', set_value('found_by')); ?> Radio</li>
          <li><?php echo form_radio('found_by', 'television', set_value('found_by')); ?> Television</li>
          <li><?php echo form_radio('found_by', 'internet_advert', set_value('found_by')); ?> Internet advert</li>
          <li><?php echo form_radio('found_by', 'search_engine', set_value('found_by')); ?> Search engine</li>
          <li><?php echo form_radio('found_by', 'none', set_value('found_by')); ?> None of the above</li>
      </ul>

Answer 1

set_value 仅适用于输入和文本区域。你需要 set_radio

set_radio()

Permits you to display radio buttons in the state they were submitted. This function is identical to the set_checkbox() function above.

<input type="radio" name="myradio" value="1" <?php echo set_radio('myradio', '1', TRUE); ?> />
<input type="radio" name="myradio" value="2" <?php echo set_radio('myradio', '2'); ?> />

来自文档页面:http://codeigniter.com/user_guide/helpers/form_helper.html