php codeigniter - form helper - 如何在radio输入上实现set_value [英] php codeigniter - form helper - How to implement set_value on radio input

问题描述

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施验证。 / p>

我唯一的问题是添加set_value（）函数来重新填充表单，如果发生错误。

代码：

如果您想在无线电输入上使用set_value

 < ul> 
< li><？php echo form_radio（'found_by'，'newspaper_advert'，set_value（'found_by'））; >报纸广告< / li> 
< li><？php echo form_radio（'found_by'，'press_release'，set_value（'found_by'））; >新闻稿< / li> 
< li><？php echo form_radio（'found_by'，'text_message'，set_value（'found_by'））; >短信< / li> 
< li><？php echo form_radio（'found_by'，'email'，set_value（'found_by'））; >电子邮件< / li> 
< li><？php echo form_radio（'found_by'，'refferal'，set_value（'found_by'））; >朋友推介 
< li><？php echo form_radio（'found_by'，'telemarketing'，set_value（'found_by'））; >电话营销< / li> 
< li><？php echo form_radio（'found_by'，'leaflet_flyer'，set_value（'found_by'））; >传单或传单< / li> 
< li><？php echo form_radio（'found_by'，'radio'，set_value（'found_by'））; >收音机< / li> 
< li><？php echo form_radio（'found_by'，'television'，set_value（'found_by'））; >电视< / li> 
< li><？php echo form_radio（'found_by'，'internet_advert'，set_value（'found_by'））; >互联网广告< / li> 
< li><？php echo form_radio（'found_by'，'search_engine'，set_value（'found_by'））; >搜索引擎< / li> 
< li><？php echo form_radio（'found_by'，'none'，set_value（'found_by'））; >以上都不是< / li> 
< / ul> 
  

解决方案

set_value 仅适用于输入和textareas。您需要 set_radio

set_radio

允许您以提交的状态显示单选按钮。
此函数与上面的set_checkbox（）函数相同。

  input type =radioname =myradiovalue =1<？php echo set_radio（'myradio'，'1'，TRUE）; > /> 
< input type =radioname =myradiovalue =2<？php echo set_radio（'myradio'，'2'）; > /> 
  

从文件页面： http://codeigniter.com/user_guide/helpers/form_helper.html

I am in the process of setting up a feedback form for my site using codeigniters form helper.

My form has been created and validation implemented, all works.

My only problem is adding the set_value() function to repopulate the form if an error occurs.

I can't get it to work on my radio inputs, how do you add the set_value() function to a radio type.

Code:

      <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>

解决方案

set_value only works on inputs and textareas. you need 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'); ?> />

From doc page: http://codeigniter.com/user_guide/helpers/form_helper.html

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