Yii2: how to create a backlink button

Question

I am new to Yii2 and I cannot find something to make the back button in Yii2, I found a solution in Yii1:

echo CHtml::link('Back',Yii::app()->request->urlReferrer);

but I can’t find a solution in Yii2, can you help me?

Answer 1

Try:

   echo \yii\helpers\Html::a( 'Back', Yii::$app->request->referrer);

Answer 2

Yii2 provides remember URLs :

// Remember current URL 
Url::remember();

// Remember URL specified. See Url::to() for argument format.
Url::remember(['product/view', 'id' => 42]);

// Remember URL specified with a name given
Url::remember(['product/view', 'id' => 42], 'product');

In the following query, we can get the URL, which will be remembered as follows:

$url = Url::previous();
$productUrl = Url::previous('product');