yii2 获取表字段的comment

$arr = $model->getTableSchema()->columns;

if(!function_exists('table_field_comment')) {
    function table_field_comment($arr) {
        if(!is_array($arr) || empty($arr)) {
            return $arr;
        }
        $data = [];
        foreach ($arr as $k=>$column) {
            $data[$k]['field'] = $column->name;
            $data[$k]['comment'] = $column->comment;
        }
        return $data;
     }
}

[DEC_SN] => Array
(
[field] => DEC_SN
[comment] => 报单编号
)

[ORDER_SN] => Array
(
[field] => ORDER_SN
[comment] => 订单编号
)