我正在尝试按类别添加动态WordPress引导转盘。它显示的是图像，但不是旋转木马。所有图像都垂直对齐。其次，url也不起作用。

请帮助我正确集成。任何帮助都将不胜感激。

这是我的密码

<?php

 $catquery = new WP_Query( \'cat=33&posts_per_page=3\' );

if( $catquery->have_posts() ): ?>
<div class="row">
  <div class="col-xs-12">
      <!--Twitter bootstrap Photo carousel-->
  <div id="myCarousel" class="carousel slide center-block"  data-ride="carousel" >
    <!-- Indicators -->
    <ol class="carousel-indicators">
        <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
        <li data-target="#myCarousel" data-slide-to="1"></li>
        <li data-target="#myCarousel" data-slide-to="2"></li>
    </ol>

<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
    <?php while( $catquery->have_posts() ) : $catquery->the_post(); $index++ ?>

      <?php if ( $index == 1 ): ?>
        <div class="item active">
      <?php else: ?>
        <div class="item">
      <?php endif; ?>
      <?php $url = wp_get_attachment_url( get_post_thumbnail_id() ); ?>
            <img src="<?php echo $url; ?>" alt="<?php the_title(); ?>">
        </div>
        </div>
  <?php endwhile; ?>
<?php endif; ?>
      <!-- Left and right controls -->
      <a class="carousel-control-prev" href="#myCarousel" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#myCarousel" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
    </a>

</div>
</div>
</div>
</div><!-- carousel ends here -->