为输入字段 Cakephp 设置最小值

$validator
    ->integer('age')
    ->requirePresence('age', 'create')
    ->notEmptyString('age')
    ->greaterThanOrEqual('age', 18, __('The age must be at least 18.'));

$example = $this->Examples->newEmptyEntity();
$form = $this->Examples->getForm('ExampleForm', $example);

if ($this->request->is('post')) {
    $example = $this->Examples->patchEntity($example, $this->request->getData());
    if ($form->validate($this->request->getData())) {
        // 保存数据
    } else {
        // 显示验证错误
    }
}

<?= $this->Form->create($example) ?>
<?= $this->Form->control('age', ['label' => 'Age', 'min' => 18]) ?>
<?= $this->Form->error('age') ?>
<?= $this->Form->button(__('Submit')) ?>
<?= $this->Form->end() ?>