frontend\modules\user\models\UserMeta::attributeLabels PHP Method

    public function attributeLabels()
    {
        return ['id' => 'ID', 'user_id' => '用户ID', 'type' => '操作类型', 'value' => '操作类型值', 'target_id' => '目标id', 'target_type' => '目标类型', 'created_at' => '创建时间'];
    }