codeigniter - 使用 codeigniter 的动态列表

Question

我正在尝试创建一个动态列表，该列表将显示我的“城市”表的项目。但是我的代码显示的是下拉菜单而不是列表。任何人都可以通过告诉我如何从中构建动态列表来帮助我。我已经尝试过使用它，但没有找到有用的资源。

我的代码的一部分：

          <?php echo form_open('frontpage/index');?>
          <p><select name ='city_city_id'>
          <?php echo form_error('city_city_id'); ?>

<?php
$getType = mysql_query("SELECT city_id, cityname FROM city ORDER BY city_id");
while($type = mysql_fetch_object($getType)){
    echo "<option value=\"{$type->city_id}\">{$type->cityname} </option>",set_value('city_city_id');
}


?> 
    <p><input type="submit" value="submit" /></p>

       <?php echo form_close();?>   

Answer 1

您需要放入multiple="multiple"您的选择标签。

例如

<select multiple="multiple">
  <option>Volvo</option>
  <option>Saab</option>
  <option>Mercedes</option>
  <option>Audi</option>
</select>

Answer 2

<?php echo form_open('frontpage/index');?>
<p>
<?php echo form_error('city_city_id'); ?>
<select name="city_city_id" multiple="multiple">

<?php
$getType = mysql_query("SELECT city_id, cityname FROM city ORDER BY city_id");
while($type = mysql_fetch_object($getType)){
    echo "<option value=\"{$type->city_id}\">{$type->cityname} </option>",set_value('city_city_id');
}
?>
</select>
</p> 
<p><input type="submit" value="submit" /></p>

<?php echo form_close();?>