Yii2：如何从控制器获取checkox的值

Question

I need to get the value of a checkbox called Password using the Yii2 Framework, in the controller.

In my _form.php I define the checkbox:

<?= Html::checkbox('password', false, $options = ['label' => 'Reset password']) ?>

In my UserController.php I have the actionUpdate function:

public function actionUpdate($id)
{
    $model = $this->findModel($id);
     if ($model->load(Yii::$app->request->post()) && $model->save()) {
        return $this->redirect(['view', 'id' => $model->id]);
    } else {
        echo '<pre>';
        echo Yii::$app->request->post()['password'];
        echo '</pre>';
        return $this->render('update', [
            'model' => $model,
        ]);
    }
}

I always get the value 1 instead of true or false .

Answer 1

First of all, there is error in your code, it should be:

<?= Html::checkbox('password', false, ['label' => 'Reset password']) ?>

This checkbox generates 1 when checked by default. If you want to send 0 when checkbox is not selected you must add:

<?= Html::checkbox('password', false, ['label' => 'Reset password', 'uncheck' => 0]) ?>

Answer 2

Checkbox return 1 for true(checked) and return 0 for false(not checked).

You can check in controller as below

if(isset($model->password) && $model->password =="1") //check box is checked
{
     // code
}