yii2 checkBoxList 自定义样式 [ 2.0 版本 ]

<?php $model->test=($model->test)?:[1,2,3]?>
<?= $form->field($model, 'DinkingType',[
'options'=>['class' => 'form-group form-md-checkboxes'],
'template' => '{label}<div class="col-md-9 md-checkbox-inline">{input}</div>{hint}{error}', 
])->checkBoxList($model->test(),
[
    'item' => function($index, $label, $name, $checked, $value) {
        $checked=$checked?"checked":"";
        $return = '<div class="md-checkbox">';
        $return .= '<input type="checkbox" id="' . $name . $value . '" name="' . $name . '" value="' . $value . '" class="md-checkbox" '.$checked.'>';
        $return .= '<label for="' . $name . $value . '">
                    <span></span>
                    <span class="check"></span>
                    <span class="box"></span>' . ucwords($label) . '</label>';
        $return .= '</div>';
        return $return;
    }
]) ?>