Checkbox 复选框的选中和未选中值提交给控制器

我有14个复选框，一些可以被选中，用户可以根据需要自由取消选中

<?php $form = ActiveForm::begin(); ?>

<h3>New Courses</h3>
<?= GridView::widget([
'dataProvider' => $ns_dataProvider,
'summary' => "{totalCount} courses",
'columns' => [
    [
        'label'=>'Register',
        'format' => 'raw',
        'value'=>function ($data) use($student, $active_session_semester) {
           // return Html::a(Html::encode("Register"),'site/index');
            $studentsubject = \app\models\Studentsubject::find()->where([
                'student_id' => $student->id,
                'subject_id' => $data->id,
                'level_id' => $student->current_level_id,
                'session_semester_id' => $active_session_semester->id,
            ])->all();
            $countstudentsubject = count($studentsubject);


            if ($countstudentsubject > 0) {
            return Html::checkbox('subject_id[]',true,['uncheck'=>"r".$data->id,'value'=>$data->id]);}
            else {
                return Html::checkbox('subject_id[]', false, ['uncheck'=>"r".$data->id,'value' => $data->id]);
            }
        },
    ],

    'subject_title',

   ],
    ]); ?>
    <div class="form-group">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
    </div>

    <?php ActiveForm::end(); ?>

</div>

但是，我得到的是返回16个值而不是14个值的数组：

   array (size=16)
    0 => string 'r273' (length=4)
    1 => string '273' (length=3)
    2 => string 'r274' (length=4)
    3 => string '274' (length=3)
    4 => string 'r275' (length=4)
    5 => string 'r295' (length=4)
    6 => string 'r296' (length=4)
    7 => string 'r297' (length=4)
    8 => string 'r423' (length=4)
    9 => string 'r424' (length=4)
    10 => string 'r425' (length=4)
    11 => string 'r590' (length=4)
    12 => string 'r591' (length=4)
    13 => string 'r592' (length=4)
    14 => string 'r593' (length=4)
   15 => string 'r594' (length=4)

---

当我选中复选框时，选中和未选中的值都会被发送。我错过什么了吗？我对yii2相当陌生。任何建议、建议和解决方案都将不胜感激。

在您的模型中，有一个包含16个值的复选框，提交将返回所有值，选中或取消选中表示不提交。这不是Yii2问题。这是POST submit方法的正常行为

我的表单只有14个复选框。数组[0]和数组[1]来自一个复选框。数组[2]和数组[3]来自第二个复选框。这就是为什么数组计数是16而不是14如果选中复选框，我想提交选中值，如果不选中，则取消选中值。你知道我怎么能用yii做这个吗？你就是做不到。在rm subimit中使用的HTTP POST方法提供了模型中所有数据的完整提交。对于复选框，这意味着它的所有值。您需要在保存之前管理Controller中提交的数据。如果这对您有用，请对其进行评分

   array (size=16)
    0 => string 'r273' (length=4)
    1 => string '273' (length=3)
    2 => string 'r274' (length=4)
    3 => string '274' (length=3)
    4 => string 'r275' (length=4)
    5 => string 'r295' (length=4)
    6 => string 'r296' (length=4)
    7 => string 'r297' (length=4)
    8 => string 'r423' (length=4)
    9 => string 'r424' (length=4)
    10 => string 'r425' (length=4)
    11 => string 'r590' (length=4)
    12 => string 'r591' (length=4)
    13 => string 'r592' (length=4)
    14 => string 'r593' (length=4)
   15 => string 'r594' (length=4)