Resources/contao/classes/container/C4GContainer.php
public function addContainersFromArray(array $array) {
        foreach ($array as $value) {
            $container = new C4GContainer();
            foreach ($value as $k => $v) {
                $container->addElement($v, $k);
            }
            $this->addElement($container);
        }
    }
public function addContainersFromArray(array $array) {
        foreach ($array as $value) {
            $container = new C4GContainer();
            foreach ($value as $k => $v) {
                $container->addElement($v, $k);
            }
            $this->addElement($container);
        }
    }
Add a two-dimensional array to the container, where every outer array element becomes a container
and every inner array element becomes an element of the corresponding container.
@param array $array
@throws \Exception