ウィジットエリアのプルダウン表示方法

p($postedDates);

echo $this->BcForm->select('test', $categoryList, array('onChange' => 'location.href=value;'));

$categories = $this->Blog->getCategories(['blogContentId' => $this->request->params['Content']['entity_id']]);
$categoryList = [];
foreach ($categories as $category) {
	$categoryList['http://xxxxx/works/archives/category/' . $category['BlogCategory']['name']] = $category['BlogCategory']['title'];
}
echo $this->BcForm->select('test', $categoryList);

<select name="data[test]" id="test">
<option value=""></option>

<option value="title">プレスリリース</option>
<option value="name">release</option>
<optgroup label="BlogCategory">
</optgroup><optgroup label="1">
</optgroup>
<option value="title">テスト</option>
<option value="name">test</option>
<optgroup label="BlogCategory">
</optgroup>
<optgroup label="2">
</optgroup>
<option value="title">カテゴリ名?</option>
<option value="name">categoryname</option>
<option value="id">3</option>
<optgroup label="BlogCategory">
</optgroup>
</select>

$categories = $this->Blog->getCategories();

<?php
$category = $this->Blog->getCategory($post,array(false)); echo h($category[‘title’]);
echo $this->BcForm->select('test', $categories );
?>