我试图创建一个自定义的注释行，因为我想更改Wordpress输出其注释HTML结构的方式，以匹配UIKit框架的样式，可以在此处找到https://getuikit.com/docs/comment
在花了点力气让Wordpress最终看到我的自定义Comment Walker之后，我让它读取了文件，但它不输出任何注释。整个评论部分为空白，我希望你们中的一个可以告诉我为什么？
是的，显然有评论。 :)并在帖子上发表评论。如果我取消对自定义评论沃克的呼叫，评论将显示正常，因此沃克确实有用。
我从Wordpress文档中找到了一个示例，该示例被公认为“标记为删除”，但似乎应该可以使用：https://codex.wordpress.org/Function_Reference/Walker_Comment
代码似乎仍然有用，我只需要将一行更改为function start_el( &$output, $comment, $depth = 0, $args = [], $id = 0 ) {即可删除它所生成的烦人的PHP 7警告消息。 （而且只有在确认代码已经失效后，我才这样做。）
functions.php
//COMMENT
class u3_walker_comment extends Walker_Comment { //https://codex.wordpress.org/Function_Reference/Walker_Comment
// init classwide variables
var $tree_type = 'comment';
var $db_fields = array( 'parent' => 'comment_parent', 'id' => 'comment_ID' );
/** CONSTRUCTOR
* You'll have to use this if you plan to get to the top of the comments list, as
* start_lvl() only goes as high as 1 deep nested comments */
function __construct() {
?>
<h3 id="comments-title">Comments</h3>
<ul id="mycomment-list">
<?php }
/** START_LVL
* Starts the list before the CHILD elements are added. Unlike most of the walkers,
* the start_lvl function means the start of a nested comment. It applies to the first
* new level under the comments that are not replies. Also, it appear that, by default,
* WordPress just echos the walk instead of passing it to &$output properly. Go figure. */
function start_lvl( &$output, $depth = 0, $args = array() ) {
$GLOBALS['comment_depth'] = $depth + 1; ?>
<ul class="children">
<?php }
/** END_LVL
* Ends the children list of after the elements are added. */
function end_lvl( &$output, $depth = 0, $args = array() ) {
$GLOBALS['comment_depth'] = $depth + 1; ?>
</ul><!-- /.children -->
<?php }
/** START_EL */
function start_el( &$output, $comment, $depth = 0, $args = [], $id = 0 ) {
$depth++;
$GLOBALS['comment_depth'] = $depth;
$GLOBALS['comment'] = $comment;
$parent_class = ( empty( $args['has_children'] ) ? '' : 'parent' ); ?>
<li <?php comment_class( $parent_class ); ?> id="comment-<?php comment_ID() ?>">
<div id="comment-body-<?php comment_ID() ?>" class="comment-body">
<div class="comment-author vcard author">
<?php echo ( $args['avatar_size'] != 0 ? get_avatar( $comment, $args['avatar_size'] ) :'' ); ?>
<cite class="fn n author-name"><?php echo get_comment_author_link(); ?></cite>
</div><!-- /.comment-author -->
<div id="comment-content-<?php comment_ID(); ?>" class="comment-content">
<?php if( !$comment->comment_approved ) : ?>
<em class="comment-awaiting-moderation">Your comment is awaiting moderation.</em>
<?php else: comment_text(); ?>
<?php endif; ?>
</div><!-- /.comment-content -->
<div class="comment-meta comment-meta-data">
<a href="<?php echo htmlspecialchars( get_comment_link( get_comment_ID() ) ) ?>"><?php comment_date(); ?> at <?php comment_time(); ?></a> <?php edit_comment_link( '(Edit)' ); ?>
</div><!-- /.comment-meta -->
<div class="reply">
<?php $reply_args = array(
'add_below' => $add_below,
'depth' => $depth,
'max_depth' => $args['max_depth'] );
comment_reply_link( array_merge( $args, $reply_args ) ); ?>
</div><!-- /.reply -->
</div><!-- /.comment-body -->
<?php }
function end_el(&$output, $comment, $depth = 0, $args = array() ) { ?>
</li><!-- /#comment-' . get_comment_ID() . ' -->
<?php }
/** DESTRUCTOR
* I just using this since we needed to use the constructor to reach the top
* of the comments list, just seems to balance out :) */
function __destruct() { ?>
</ul><!-- /#comment-list -->
<?php }
}
//COMMENT
comments.php
<?php new u3_Walker_Comment() ; ?>
post.php
<?php
if ( comments_open() || get_comments_number() ) {
comments_template('/html/comments.php', true);
};
?>
页面上的结果仅为<h3 id="comments-title">Comments</h3><ul id="mycomment-list">
</ul>。评论列表完全空白！