我正在使用wordpress MU 3.3.1。我想在循环中添加一个函数，该函数只显示带有图像或特色图像的帖子。

请帮助我如何过滤帖子。

<?php get_header(); ?>
<div id="content">
<?php 
    global $post;
    $categories = get_categories(\'child_of=7694\');  
    foreach ($categories as $category) {

        $cat_id = $category->cat_ID;

        $games = get_posts(\'numberposts=6&orderby=rand&category=\'.$cat_id);

        if ($games) : ?>

          <div class="single">

            <h1><a href="<?php echo get_category_link($cat_id); ?>"><?php echo $category->name; ?></a></h1>

           <?php foreach ($games as $post) : $do_not_duplicate = $post->ID; ?>


              <div class="game_title">

                <a href="<?php the_permalink() ?>" rel="bookmark" title="<?php echo get_post_meta($post->ID, \'mabp_description\', $single = true); ?>" >

                <?php 

                if ( (strlen($post->post_title) > 10) ) { 

                  echo substr($post->post_title, 0, 10).".."; 

                } 

                else {

                  the_title(); 

                }

                ?>

                </a>

                <br />

                <a href="<?php the_permalink() ?>" class="thumb_link" rel="bookmark" title="<?php echo get_post_meta($post->ID, \'mabp_description\', $single = true); ?>"><?php 
gab_media(array(
        \'name\' => \'gab_featured\',
        \'enable_video\' => \'true\',
        \'catch_image\' => \'true\',
        \'enable_thumb\' => \'true\',
        \'resize_type\' => \'c\', 
        \'media_width\' => \'60\', 
        \'media_height\' => \'34\', 
        \'thumb_align\' => \'featured_thumb\', 
        \'enable_default\' => get_option(\'of_nw_enfea2\'),
        \'default_name\' => \'featured_thumb.jpg\'                                  
)); 
?>  

</a>                                   
</div>
            <?php endforeach; ?>

            <div class="cat_link"><a href="<?php echo get_category_link($cat_id); ?>">More Games</a></div>

          </div>



        <?php endif; }?>



    </div> <?php // End content div ?>



    <?php get_sidebar(); ?>

    <?php get_footer(); ?>