Код: Выделить всё
Yii::$app->session->open();
$c = count($_SESSION['basket']);
$_SESSION['basket'][$c] = [];
$_SESSION['basket'][$c]['artikl'] = $material->artikl;
$_SESSION['basket'][$c]['photo'] = $material->photo;
$_SESSION['basket'][$c]['size'] = $size;
$_SESSION['basket'][$c]['color'] = $color;
$_SESSION['basket'][$c]['price'] = $material->price;
Код: Выделить всё
Yii::$app->session->open();
session_start();
var_dump($_SESSION);