试图在侧边栏 PHP 中显示特定于类别的评论答案

【问题标题】：trying to display category specific comments in sidebar PHP试图在侧边栏 PHP 中显示特定于类别的评论
【发布时间】：2012-07-24 12:24:47
【问题描述】：

我试图在侧边栏中仅显示当前类别的 cmets。到目前为止，我得到了这个：

但它不起作用，它要么到处显示 0 cmets，要么到处都显示。我不明白我做错了什么......

问题似乎是这部分： // 类别（可以是父类别） $cat = get_query_var('cat'); $category_parent = $cat;

<?php
    // Posts per page setting
    $ppp = 8; //get_option('posts_per_page'); // either use the WordPress global Posts per page setting or set a custom one like $ppp = 10;
    $custom_offset = 0; // If you are dealing with your custom pagination, then you can calculate the value of this offset using a formula

    // category (can be a parent category)
    $cat = get_query_var('cat');
    $category_parent = $cat;

    // lets fetch sub categories of this category and build an array
    $categories = get_terms( 'category', array( 'child_of' => $category_parent, 'hide_empty' => false ) );
    $category_list =  array( $category_parent );

    foreach( $categories as $term ) {
        $category_list[] = (int) $term->term_id;
    }

    // fetch posts in all those categories
    $posts = get_objects_in_term( $category_list, 'category' );

    $sql = "SELECT comment_ID, comment_date, comment_content, comment_post_ID, user_id, comment_author
     FROM {$wpdb->comments} WHERE
     comment_post_ID in (".implode(',', $posts).") AND comment_approved = 1
     ORDER by comment_date DESC LIMIT $ppp OFFSET $custom_offset";

    $comments_list = $wpdb->get_results( $sql );

    if ( count( $comments_list ) > 0 ) {

        $date_format = get_option( 'date_format' );

        foreach ( $comments_list as $comment ) {
?>

            <li>
                <a href="<?php echo ( get_permalink( $comment->comment_post_ID ) ); ?>#comment-<?php echo($comment->comment_ID); ?>"><?php echo get_avatar( $comment->user_id, 50 ); ?></a>
                <span><strong><?php echo($comment->comment_author); ?></strong> commented on</span>
                <h3><a href="<?php echo ( get_permalink( $comment->comment_post_ID ) ); ?>"><?php echo get_the_title ( $comment->comment_post_ID ); ?></a></h3>
                <span><?php echo($comment->comment_date); ?></span>
                <p>"<?php comment_excerpt(); ?>" <a href="<?php echo ( get_permalink( $comment->comment_post_ID ) ); ?>#comment-<?php echo($comment->comment_ID); ?>">Read More</a></p>
                <div class="clearfloat"></div><!-- Very Important -->
            </li>

<?php
        }

    } else {
        echo '<p>No comments</p>';
    }
?>

【问题讨论】：

我不太明白“它要么到处显示 0 cmets，要么到处都显示 0 cmets”。两个注意事项：1）您的 SQL 查询将获取“所有批准的 cmets”（是否有任何批准？） 2）您的 HTML 输出是
元素。这些是在父

<?php $ppp = 8; $custom_offset = 0; // get the current category (includes children/parents) $categories = get_the_category(); // create an array that only has each category_id $category_ids = array_map(function($category) { return $category->cat_ID; }, $categories); // find all posts by the category ids $posts = query_posts('cat=' . implode(',', $category_ids)); // create an array that only has each post_id $post_ids = array_map(function($post) { return $post->ID; }, $posts); // find all comments by post_ids $sql = "SELECT comment_ID, comment_date, comment_content, comment_post_ID, user_id, comment_author FROM {$wpdb->comments} WHERE comment_post_ID in (".implode(',', $post_ids).") AND comment_approved = 1 ORDER by comment_date DESC LIMIT $ppp OFFSET $custom_offset"; $comments = $wpdb->get_results( $sql ); if( $comments ) { // do stuff with $comments } ?>