PHP Scan directory for images - carousel

<?php $thumbs = glob("{$_SERVER['DOCUMENT_ROOT']}/img/gallery/africa/thumb/*.jpg"); ?>
    <?php
    if(count($thumbs)) {
    natcasesort($thumbs);
    foreach($thumbs as $thumb) {
    ?>
    <li class="item">
        <a class="fancybox" rel="gallery1" href="/img/gallery/africa/large/<?php echo basename($thumb) ?>">
            <img src="<?php echo $thumb ?>" alt="" />
        </a>
    </li>

    <?php
    } else {
    echo "No images!";
    }}
    ?>