下拉需要在 codeigniter 中不工作

Question

我想让邮件成为必填字段，但不知何故它不起作用，我是不是遗漏了什么？

<div class="col-md-5 ">
  <div class="control-group form-group">
    <label class="control-label">
      Escalation Email Ids
    </label>
    <div class="controls">
      <?php $options=a rray(); if(count($useridsoptions)){ foreach($useridsoptions as $key=>$val){ $options[$key]=$val; } } echo form_dropdown('esc_users[]', $options, explode(",",$row->esc_users),'id="esc_users" class="form-control function col-md-12 select2", reqired="required" multiple'); ?>
    </div>
  </div>
</div>

Answer 1

Codeigniter 下拉验证示例

<?php  echo form_label("Country:
","country");
     $data = array(
          "selectcountry"  => "Select Country",               
          "CA" => "Canada",
          "US" => "United States",
          "ZW" => "Zimbabwe"
                  );
     echo form_dropdown('country', $data, 'selectcountry');?>

表单验证规则

<?php  $this->form_validation->set_rules('country', 'Country', 'required|callback_country_check');?>

回调方法

 public function country_check()
    {
            if ($this->input->post('country') === 'selectcountry')  {
            $this->form_validation->set_message('country_check', 'Please choose your country.');
            return FALSE;
        }
        else {
            return TRUE;
        }
    }

Answer 2

注意到代码中的几个问题。 required & array 拼写错误而且 form_dropdown() 函数

中最后一个参数使用的语法错误

试试这个

<div class="col-md-5 ">
  <div class="control-group form-group">
    <label class="control-label">
      Escalation Email Ids
    </label>
    <div class="controls">
      <?php $options=array(); if(count($useridsoptions)){ foreach($useridsoptions as $key=>$val){ $options[$key]=$val; } } echo form_dropdown('esc_users[]', $options, explode(",",$row->esc_users),'id="esc_users" class="form-control function col-md-12 select2" required="required" multiple'); ?>
    </div>
  </div>
</div>

下拉需要在 codeigniter 中不工作

Dropdown required not working in codeigniter

php

html

codeigniter

codeigniter-2

codeigniter-3