yii\rbac\PhpManager::removeAllItems PHP Method

    protected function removeAllItems($type)
    {
        $names = [];
        foreach ($this->items as $name => $item) {
            if ($item->type == $type) {
                unset($this->items[$name]);
                $names[$name] = true;
            }
        }
        if (empty($names)) {
            return;
        }
        foreach ($this->assignments as $i => $assignments) {
            foreach ($assignments as $n => $assignment) {
                if (isset($names[$assignment->roleName])) {
                    unset($this->assignments[$i][$n]);
                }
            }
        }
        foreach ($this->children as $name => $children) {
            if (isset($names[$name])) {
                unset($this->children[$name]);
            } else {
                foreach ($children as $childName => $item) {
                    if (isset($names[$childName])) {
                        unset($children[$childName]);
                    }
                }
                $this->children[$name] = $children;
            }
        }
        $this->saveItems();
    }