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我目前正在使用此代码获取上一个和下一个帖子链接和缩略图

       <?php $prevPost = get_previous_post(true);
            if($prevPost) {?>
            <div class="nav-box previous" style="float:left;">
            <?php $prevthumbnail = catch_that_image($prevPost->ID, array(100,100) );}?>
            <?php previous_post_link('%link',"$prevthumbnail  %title", TRUE); ?>
            </div>

        <?php $nextPost = get_next_post(true);
            if($nextPost) { ?>
        <div class="nav-box next" style="float:right;">
            <?php $nextthumbnail = catch_that_image($nextPost->ID, array(100,100) ); } ?>
            <?php next_post_link('%link',"$nextthumbnail  %title", TRUE); ?>
            </div>

但我想将帖子的第一张图片作为缩略图，而不是特色图片。

我发现这段代码可以获取当前帖子的第一张图片，但是如何将它与上面的代码一起使用来获取上一篇文章或下一篇文章的第一张图片？

function catch_that_image() {
global $post, $posts;
$first_img = '';
ob_start();
ob_end_clean();
$output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
$first_img = $matches [1] [0];
return $first_img;
}
4

1 回答 1

0

我已将此代码用于自定义帖子类型，这将适用于您进行一些更改：

<div class="memberNavigation">
  <div class="memberNav">
    <?php // Display the thumbnail of the previous post ?>
    <div class="memberNavPrev">
      <?php
                $prevPost = get_previous_post();
                $prevthumbnail = get_the_post_thumbnail($prevPost->ID);
                $prevtitle = get_the_title($prevPost->ID); ?>
      <p class="navtitle">
        <?php previous_post_link('%link', 'Previous Board Member'); ?>
      </p>
      <?php previous_post_link('%link', $prevthumbnail); ?>
      <h5 class="memberTitle">
        <?php previous_post_link('%link', $prevtitle); ?>
      </h5>
    </div>
    <?php // Display the thumbnail of the next post ?>
    <div class="memberNavNext">
      <?php
                $nextPost = get_next_post();
                $nextthumbnail = get_the_post_thumbnail($nextPost->ID); 
                $nexttitle = get_the_title($nextPost->ID); ?>
      <p class="navtitle">
        <?php next_post_link('%link', 'Next Board Member'); ?>
      </p>
      <?php next_post_link('%link', $nextthumbnail); ?>
      <h5 class="memberTitle">
        <?php previous_post_link('%link', $nexttitle); ?>
      </h5>
    </div>
    <div class="clearfix"></div>
  </div>
</div>
于 2013-08-24T11:27:33.440 回答