Sonat

            <?php if($photos){ ?>
            <div id="related_photos_wrap">
                <h3><?php echo $related_title; ?></h3>
                <div class="album-photos-wrap owl-carousel" id="related_photos" data-delete-url="<?php echo href_to('photos', 'delete'); ?>">
                    <?php echo $this->renderChild('photos', array(
                        'photos'        => $photos,
                        'is_owner'      => false,
                        'user'          => $user,
                        'photo_wrap_id' => 'related_photos',
                        'preset_small'  => $preset_small,
                        'disable_flex'  => true
                    )); ?>
                </div>
            </div>
            <?php } ?>

 if (isset($photos)){
...
}