CodeIgniter验证下拉菜单 [英] CodeIgniter validating drop down menu

问题描述

如果选项等于选择，我将如何写在CodeIgniter中？是否需要选择一个选项？

How would I write in CodeIgniter, if option equals "Select" Throw an error saying that selecting an option is required?

<option>Select</option>
<option>Option 1</option>
<option>Option 2</option>
<option>Option 3</option>
<option>Option 4</option>

推荐答案

$ b解决方案

解决方案

<select id='my_options'>
<option value=0>Select</option>
<option value=1>Option 1</option>
<option value=2>Option 2</option>
<option value=3>Option 3</option>
<option value=4>Option 4</option>
</select>

您可以执行以下操作：

$this->form_validation->set_rules('my_options','Select Options','required|greater_than[0]');

显然，这假设你使用form_validation类，并且你的表单被定向到一个控制器，写上面这行代码..will那么做？

obviously this assumes that you are using the form_validation class and your form is directed to a controller where you would write the above line of code ..will that do ?

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