WordPress短代码显示一些错误

Question

这是显示类别的帖子。但它有一些错误，请修复它。

这是我的WordPress的简码

function my_form_shortcode($atts) { 
    ob_start(); 
    $atts = shortcode_atts(
     array(
      'cat' => '1', 
     'showposts' => '5', 
    ), $atts, 'my_form_shortcode'); 

    //YOUR CODE START 

$recent = new WP_Query(); 
$query = "cat=".$atts['cat']."&showposts=".$atts['showposts']; 
$recent->query($query); 
$is_first_post = true; 
while($recent->have_posts()) : $recent->the_post(); ?> 

<div class="panel-heading"><?php the_category(', '); ?></div> 

<ul class="panel-grid"> 
<li class="ex"> 
<?php 
if ($is_first_post && has_post_thumbnail()) { 
    the_post_thumbnail('image', array('class' => 'img-responsive')); 
    $is_first_post = false; 
    } 
?> 

<a href="<?php the_permalink(); ?>"> 
<?php the_title(); ?> 
    </a> 
</li> 
</ul> 
<?php endwhile; 
//YOUR CODE END 

return ob_get_clean(); 
} 

add_shortcode('my_form_shortcode', 'my_form_shortcode'); 

在所有岗位在此之前的代码类别标题名称显示。但我只想在第一篇文章之前展示类别标题。这段代码有什么问题。请帮助我..

Answer 1

试试这个... https://developer.wordpress.org/reference/functions/get_the_category_by_id/

function get_the_category_by_ID($cat_ID) { 
 
    $cat_ID = (int) $cat_ID; 
 
    $category = get_term($cat_ID, 'category'); 
 
    
 
    if (is_wp_error($category)) 
 
     return $category; 
 
    
 
    return ($category) ? $category->name : ''; 
 
}

Answer 2

试试这个代码：

<?php 
function my_form_shortcode($atts) { 
    ob_start(); 
    $atts = shortcode_atts(
    array(
     'cat' => '1', 
     'showposts' => '5', 
    ), $atts, 'my_form_shortcode'); 

    //YOUR CODE START 

    $recent = new WP_Query(); 
    $query = "cat=".$atts['cat']."&showposts=".$atts['showposts']; 
    $recent->query($query); 
    $is_first_post = true; ?> 
    <div class="panel-heading"><?php the_category(', '); ?></div> 
    <?php while($recent->have_posts()) : $recent->the_post(); ?> 

     <ul class="panel-grid"> 
      <li class="ex"> 
      <?php 
       if ($is_first_post && has_post_thumbnail()) { 
        the_post_thumbnail('image', array('class' => 'img-responsive')); 
        $is_first_post = false; 
       } 
      ?> 

      <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a> 
      </li> 
     </ul> 
    <?php endwhile; 
    //YOUR CODE END 

    return ob_get_clean(); 
} 

add_shortcode('my_form_shortcode', 'my_form_shortcode');