WordPress-检索按类别列出的帖子的特色图片

Question

我是WordPress的新手，已经成功检索了每个类别的三个帖子并列出了它们。 我还想检索每个帖子的特色图片。 我已经在index.php文件中尝试了以下代码。 正如我所提到的，代码检索了三个帖子，但是检索图像的代码只是在网站上以纯文本形式出现，因此我假设我有一些语法错误。 谁能帮我吗？ 任何帮助表示赞赏。

index.php

<?php
//get all terms (e.g. categories or post tags), then display all posts in each term
$taxonomy = 'category';//  e.g. post_tag, category
$param_type = 'category__in'; //  e.g. tag__in, category__in
$term_args=array(
  'orderby' => 'name',
  'order' => 'ASC'
);
$terms = get_terms($taxonomy,$term_args);
if ($terms) {
  foreach( $terms as $term ) {
    $args=array(
      "$param_type" => array($term->term_id),
      'post_type' => 'post',
      'post_status' => 'publish',
      'posts_per_page' => 3,
      'caller_get_posts'=> 1,
      );
    $my_query = null;
    $my_query = new WP_Query($args);
    if( $my_query->have_posts() ) {
      echo 'List of Posts in '.$taxonomy .' '.$term->name;
      while ($my_query->have_posts()) : $my_query->the_post(); ?>
        <p><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></p>



if (has_post_thumbnail($post->ID)) {
        $retina  = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'homepage-thumb-retina' );
        echo '<img src="' . $retina[0] . '" alt="' . the_title() . '" width="24" height="24" />' ;
};

       <?php
      endwhile;
    }
  }
}
wp_reset_query();  // Restore global post data stomped by the_post().
?>

Answer 1

请使用下面的代码，你已经错过了<?php之前if (has_post_thumbnail($post->ID)) {

<?php
//get all terms (e.g. categories or post tags), then display all posts in each term
$taxonomy = 'category';//  e.g. post_tag, category
$param_type = 'category__in'; //  e.g. tag__in, category__in
$term_args=array(
  'orderby' => 'name',
  'order' => 'ASC'
);
$terms = get_terms($taxonomy,$term_args);
if ($terms) {
  foreach( $terms as $term ) {
    $args=array(
      "$param_type" => array($term->term_id),
      'post_type' => 'post',
      'post_status' => 'publish',
      'posts_per_page' => 3,
      'caller_get_posts'=> 1,
      );
    $my_query = null;
    $my_query = new WP_Query($args);
    if( $my_query->have_posts() ) {
      echo 'List of Posts in '.$taxonomy .' '.$term->name;
      while ($my_query->have_posts()) : $my_query->the_post(); ?>
        <p><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></p>


<?php
if (has_post_thumbnail($post->ID)) {
        $retina  = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'homepage-thumb-retina' );
        echo '<img src="' . $retina[0] . '" alt="' . the_title() . '" width="24" height="24" />' ;
};

      endwhile;
    }
  }
}
wp_reset_query();  // Restore global post data stomped by the_post().
?>