如何在WordPress中按ID提取和显示帖子？

Question

所以，我在 WordPress 中有这个特殊的页面模板。我想用它来按 ID 显示一些帖子（我会指定）。

类似

<?php displayPost(10); ?>

它将包含帖子缩略图、标题和我将使用的帖子元数据中的一些值。

经过几个小时的搜索和汗水，这就是我所拥有的

<?php
class episodeDetails
{   
    public $id;
    function episodeTitle(){
        $title = get_the_title($this->id);
        $mykey_values = get_post_custom_values( 'episode', $this->id);
        foreach ( $mykey_values as $key => $value ) {
        return $title." : ".value;
        } 
    }
   function episodeImage(){
        return get_the_post_thumbnail_url($this->id);
    }

   function episodeLink(){
        return get_the_permalink($this->id);
    }
    function episodeMp3(){
        $mykey_values = get_post_custom_values( 'enclosure', $this->id);
        foreach ( $mykey_values as $key => $value ) {
       return strtok($value, "\n");
        }  
    }
}

$episode = new episodeDetails;
$episode->id="480";
?>

<div class="list-videos">
<div class="list-videos-image">
<a href="<?php echo $episode->episodeLink(); ?>" title="<?php echo $episode->episodeTitle(); ?>"><img width="404" height="404" src="<?php echo $episode->episodeImage(); ?>" class="attachment-portfolio-thumbnail wp-post-image" alt="<?php echo $episode->episodeTitle(); ?>"></a>
</div>
<div class="list-videos-text">
    <a href="<?php echo $episode->episodeLink(); ?>" rel="bookmark" title="<?php echo $episode->episodeTitle(); ?>!"><?php echo $episode->episodeTitle(); ?></a><br><a class="button" href="<?php echo $episode->episodeLink(); ?>" rel="bookmark"><i class="fas fa-play"></i> Play Now</a> <a class="button" href="<?php echo $episode->episodeMp3(); ?>" download=""><i class="fas fa-download"></i> Download MP3</a>
</div>
</div>

现在，它确实显示了我想要的，但我觉得它可以以更好、更简单的方式完成。我的方式将要求我为每个额外的帖子一次又一次地复制和粘贴整个 HTML 块。我想简化它，我正在寻找是否有一种简洁的方法，而不是我觉得是递归的冗长而复杂的 HTML 部分。

谢谢

Answer 1

严格回答您的问题：只需使用foreach 循环即可。

// Your class declaration to be put here...

// Then declare your IDs
$episodeIds = array(480, 481, 482, ...);

// And finally loop over them
foreach($episodeIds as $id) {

    $episode = new episodeDetails;
    $episode->id=$id;

    ?><div class="list-videos">
        <div class="list-videos-image">
            <a href="<?php echo $episode->episodeLink(); ?>" title="<?php echo $episode->episodeTitle(); ?>"><img width="404" height="404" src="<?php echo $episode->episodeImage(); ?>" class="attachment-portfolio-thumbnail wp-post-image" alt="<?php echo $episode->episodeTitle(); ?>"></a>
        </div>
        <div class="list-videos-text">
            <a href="<?php echo $episode->episodeLink(); ?>" rel="bookmark" title="<?php echo $episode->episodeTitle(); ?>!"><?php echo $episode->episodeTitle(); ?></a><br><a class="button" href="<?php echo $episode->episodeLink(); ?>" rel="bookmark"><i class="fas fa-play"></i> Play Now</a> <a class="button" href="<?php echo $episode->episodeMp3(); ?>" download=""><i class="fas fa-download"></i> Download MP3</a>
        </div>
    </div><?php
}

或者您可以将代码的模板部分包装在一个函数中（例如您的示例displayPost(...)），然后在循环中调用该函数。

// Your class declaration to be put here...

// The display method gets the $episode object as parameter
function displayPost($episode) {
    ?><div class="list-videos">
        <div class="list-videos-image">
            <a href="<?php echo $episode->episodeLink(); ?>" title="<?php echo $episode->episodeTitle(); ?>"><img width="404" height="404" src="<?php echo $episode->episodeImage(); ?>" class="attachment-portfolio-thumbnail wp-post-image" alt="<?php echo $episode->episodeTitle(); ?>"></a>
        </div>
        <div class="list-videos-text">
            <a href="<?php echo $episode->episodeLink(); ?>" rel="bookmark" title="<?php echo $episode->episodeTitle(); ?>!"><?php echo $episode->episodeTitle(); ?></a><br><a class="button" href="<?php echo $episode->episodeLink(); ?>" rel="bookmark"><i class="fas fa-play"></i> Play Now</a> <a class="button" href="<?php echo $episode->episodeMp3(); ?>" download=""><i class="fas fa-download"></i> Download MP3</a>
        </div>
    </div><?php
}

// Then declare your IDs
$episodeIds = array(480, 481, 482, ...);

// And finally loop over them
foreach($episodeIds as $id) {

    $episode = new episodeDetails;
    $episode->id=$id;
    displayPost($episode);
}