Виджеты / Widgets

$categories = Category::find()->addOrderBy('lft')->all();
$level = 0;
 
foreach ($categories as $n => $category)
{
    if ($category->level == $level) {
        echo Html::endTag('li') . "\n";
    } elseif ($category->level > $level) {
        echo Html::beginTag('ul') . "\n";
    } else {
        echo Html::endTag('li') . "\n";
 
        for ($i = $level - $category->level; $i; $i--) {
            echo Html::endTag('ul') . "\n";
            echo Html::endTag('li') . "\n";
        }
    }
 
    echo Html::beginTag('li');
    echo Html::encode($category->title);
    $level = $category->level;
}
 
for ($i = $level; $i; $i--) {
    echo Html::endTag('li') . "\n";
    echo Html::endTag('ul') . "\n";
}