<?php
$postmeta = get_post_custom(get_the_id());
$attachments = array();
if(!empty($postmeta["_format_gallery"][0])){
    $attachments =  $postmeta["_format_gallery"][0];
    $attachments = preg_replace('/[^0-9.]+/', ',', $attachments);
    $attachments = explode(',',$attachments);
}
if ($attachments) {
?>
<div class="category-slider" value="slider-category-<?php echo esc_attr($post->ID) ?>">
    <div id="slider-category" class="slider-category">
        <ul id="slider" class="slider-category-<?php echo esc_attr($post->ID) ?>">
            <?php foreach ($attachments as  $image_url) {
                $image_url = wp_get_attachment_url( $image_url );
                if(!empty($image_url)) { ?>
                    <li>
                        <img src="<?php echo esc_url( $image_url) ?>" />
                    </li>
                <?php } ?>
            <?php } ?>
        </ul>
        <div class="bx-controls bx-has-pager bx-has-controls-direction">
            <div class="bx-pager bx-custom-pager">
                <?php
                foreach ($attachments as  $key=>$image_url) {
                    $image_url = wp_get_attachment_url( $image_url );
                    if(!empty($image_url)) {
                    ?>
                        <div class="bx-pager-item">
                        <a data-slide-index="<?php echo esc_attr($key-1) ?>" href=""><img src="<?php echo esc_url( $image_url) ?>" alt="<?php ?>"/></a>
                        </div>
                    <?php } ?>
                    <?php
                } ?>
            </div>
        </div>
    </div>
    <?php
    echo do_shortcode('[gallery size="medium" id="9094"]');?>
</div>
<?php } ?>