szurubooru/src/Views/index-help.phtml

<?php
Assets::setSubtitle('help');
Assets::addStylesheet('index-help.css');

$tabs = getConfig()->help->subTitles;
$firstTab = !empty($tabs) ? array_keys($tabs)[0] : null;
$showTabs = count($tabs) > 1;
?>

<?php if ($showTabs): ?>
	<nav class="tabs">
		<ul>
			<?php foreach ($tabs as $tab => $text): ?>
				<?php if ($tab == $this->context->tab): ?>
					<li class="selected <?= $tab ?>">
				<?php else: ?>
					<li class="<?= $tab ?>">
				<?php endif ?>
					<a href="<?= \Chibi\Router::linkTo(
						['IndexController', 'helpAction'],
						$tab == $firstTab ? [] : ['tab' => $tab]) ?>">
						<?= $text ?>
					</a>
				</li>
			<?php endforeach ?>
		</ul>
	</nav>

	<div class="tab-content">
<?php endif ?>

<?= TextHelper::parseMarkdown(file_get_contents($this->context->path)) ?>

<?php if ($showTabs): ?>
	</div>
<?php endif ?>