在cakephp下拉列表中添加默认选项"Please Select"

Question

我是cakephp的新手.我需要添加一个默认值

<option value="0">--Please Select--</option>

在我的以下选择字段中:

$attributes = array("empty"=>false,"Selected" => 'Select City',"id" => "location");
echo $form->select("gal_location_id", $gal_locations,null,$attributes); 

我试着补充一下

$gal_locations[0] = "--Select City--";
$attributes = array("empty"=>false,"default" => 0,"id" => "location");

但选项位于列表的底部.添加默认选项的正确方法是什么？

Answer 1

您正在寻找"空"属性:

$this->Form->input('gal_location_id', array(
    'type' => 'select',
    'options' => $gal_locations,
    'empty' => 'Select City', // <-- Shows as the first item and has no value
    'id' => 'location'
));