carousel

<?php
/**
 * Carousel template
 *
 * @package NewsAnchor
 */

    //Scripts
    function newsanchor_carousel_scripts() {
        wp_enqueue_script( 'newsanchor-owl-script', get_template_directory_uri() .  '/js/owl.carousel.min.js', array( 'jquery' ), true );
    }
    add_action( 'wp_enqueue_scripts', 'newsanchor_carousel_scripts' );

    //Template
    if ( ! function_exists( 'newsanchor_carousel' ) ) {
        function newsanchor_carousel() {
            if ( ( get_theme_mod('carousel_display_front', '1') && is_front_page() ) || ( get_theme_mod('carousel_display_archives', '1') && ( is_home() || is_archive() ) ) || ( ( get_theme_mod('carousel_display_singular') && is_singular() ) ) ) {

                //Get the user choices
                $number     = get_theme_mod('carousel_number');
                $cat        = get_theme_mod('carousel_cat');
                $speed      = get_theme_mod('carousel_speed');
                $number     = ( ! empty( $number ) ) ? intval( $number ) : 6;
                $cat        = ( ! empty( $cat ) ) ? intval( $cat ) : '';
                $speed      = ( ! empty( $speed ) ) ? absint( $speed ) : '4000';

                $cats = get_categories();
                if(count($cats)){ ?>
                <div class="roll-posts-carousel col-md-12" data-items="3" data-auto="true" data-speed="<?php echo absint($speed); ?>">
                    <div class="owl-carousel">
                <?php
                foreach($cats as $cat):

                    $args = array(
                        'posts_per_page'        => $number,
                        'post_status'           => 'publish',
                        'cat'                   => $cat->term_id,
                        'ignore_sticky_posts'   => true
                    );
                    $query = new WP_Query( $args );
                    if ( $query->have_posts() ) {
                    ?>
                            <?php while ( $query->have_posts() ) : $query->the_post(); ?>
                                        <div class="item">
                                        <?php if ( has_post_thumbnail() ) : ?>
                                            <?php the_post_thumbnail('newsanchor-carousel-thumb'); ?>
                                        <?php else : ?>
                                            <?php echo '<img src="' . get_stylesheet_directory_uri() . '/images/placeholder.png"/>'; ?>
                                        <?php endif; ?>
                                            <div class="text-over">
                                            <?php the_title( sprintf( '<h4 class="carousel-title"><a href="%s" rel="bookmark">', esc_url( get_permalink() ) ), '</a></h4>' ); ?>
                                        </div>
                                        </div>
                            <?php endwhile; ?>

                    <?php }
                endforeach; ?>
                    </div>
                </div>
                <?php
                }
                wp_reset_postdata();
            }
        }
    }