cakePHP：$ this-> Form-> input（） - 如何设置选择默认选项

In my view I have:

在我看来，我有：

echo $this->Form->input('category_parent_id');

and it outputs:

它输出：

<option value="1">category name 1</option>
<option value="2">category name 2</option>
...

but how do I tell it input() that I want a default option like so?:

但是如何告诉它input（）我想要一个默认选项呢？：

<option value="">select a category</option>
<option value="1">category name 1</option>
<option value="2">category name 2</option>
...

nvm, found it:

nvm，发现它：

echo $this->Form->input('category_parent_id', array('empty' => 'Select a parent category'));

1 个解决方案

#1

Your question is a little vague, but you can do the following to select a default option...

您的问题有点模糊，但您可以执行以下操作以选择默认选项...

echo $this->Form->input('category_parent_id', array('default' => 'id_of_default_val'));

EDIT

编辑

Per your edit, to include an empty default option, do this as documented in the CakePHP Form Helper...

根据您的编辑，要包含一个空的默认选项，请按照CakePHP表单助手中的说明执行此操作...

echo $this->Form->input('category_parent_id', array('empty' => 'choose one'));