Balsam Bashing

<?php
$gallery = get_field('event_gallery', get_the_ID());
if ($gallery) : ?>
    <div class="event-gallery-grid"> <!-- Grid container -->
        <?php
        // Get 12 random images (use array_rand for random selection)
        $random_images = array_rand($gallery, 12); 
        foreach ((array)$random_images as $image) :
            $img_url = $gallery[$image]['url'];
            $img_alt = $gallery[$image]['alt'];
        ?>
            <div class="event-gallery-image">
                <!-- Anchor tag that links to the full image -->
                <a href="<?php echo $img_url; ?>" target="_blank">
                    <img src="<?php echo $img_url; ?>" alt="A photo of <?php echo $img_alt; ?>" />
                </a>
            </div>
        <?php endforeach; ?>
    </div> <!-- End grid container -->
<?php endif; ?>