menularin submenu yoksada da bu meno-arrow icon cekiyor bunu nasil cozebilirim?

<?php foreach ($menus as $mainUrl => $menu): ?>
            <li class="nav-item menu-items">
                <a class="nav-link <?=(route(1) == $mainUrl) || isset($menu['submenu'][route(1)]) ? 'active' : null?>" data-toggle="collapse" href="<?=panel_url($mainUrl)?>" aria-expanded="false" aria-controls="ui-basic">
                    <span class="menu-icon">
                        <i class="mdi mdi-<?= $menu['icon'] ?>"></i>
                    </span>
                    <span class="menu-title"><?= $menu['title'] ?></span>
                    <i class="menu-arrow"></i>
                </a>
                <div class="collapse" id="<?=panel_url($mainUrl)?>">
                    <?php if (isset($menu['submenu'])): ?>
                    <ul class="nav flex-column sub-menu">
                        <?php foreach ($menu['submenu'] as $url => $title): ?>
                            <li class="nav-item"> <a class="nav-link" href="<?=panel_url($url)?>"><?=$title?></a></li>
                        <?php endforeach; ?>
                    </ul>
                    <?php endif; ?>
                </div>
            </li>
            <?php endforeach; ?>