我创建了一个类别列表，以我的手风琴可以使用的方式显示它们。（侧栏中的自定义）我想为当前查看的帖子添加一个名为“current”的类，并且应该打开已查看的类别。您有什么想法可以将其集成到代码中吗？这是一项艰苦的工作，让这项工作，现在我不知道如何整合它。。。
链接：http://www.davidgoltz.de/2011/anna-bederke-actor/ （单击“公文包”后，将显示菜单，并应显示打开的树和突出显示的帖子。
代码如下：
<div id="category-list">
<ul class="topnav">
<?php
$kategorien = get_categories(array(
\'child_of\' => 0,
\'exclude_tree\' => 15,
\'exclude\' => 16,
\'orderby\' => \'slug\',
\'order\' => \'ASC\'));
foreach($kategorien as $kategorie) {
echo \'<li><a href="#" class="category-title">\'; echo ($kategorie->name); echo \'</a>\';
echo \'<ul>\';
$cat = $kategorie->cat_ID;
$posts = get_posts(\'category=\'. $cat .\'&posts_per_page=-1\');
foreach($posts as $post) { ?>
<li>
<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
<li>
<? }
echo \'</ul>\';
echo \'</li>\';
}
?>
</ul>
</div>
最合适的回答,由SO网友:Bainternet 整理而成
Try this:
<div id="category-list">
<ul class="topnav">
<?php
if (is_single()){
global $post;
$pid = $post->ID;
$post_categories = wp_get_post_categories( $post->ID );
$cats = array();
foreach($post_categories as $c){
$cat = get_category( $c );
$cats[] = $cat->ID;
}
$active_cat_count = true;
$cat_count = 0;
}
$kategorien = get_categories(array(
\'child_of\' => 0,
\'exclude_tree\' => 15,
\'exclude\' => 16,
\'orderby\' => \'slug\',
\'order\' => \'ASC\'));
foreach($kategorien as $kategorie) {
if (isset($active_cat_count) && $active_cat_count){
if (in_array($kategorie->ID,$cats){
$active_cat_count = false;
}else{
$cat_count = $cat_count + 1;
}
}
echo \'<li><a href="#" class="category-title">\'; echo ($kategorie->name); echo \'</a>\';
echo \'<ul>\';
$cat = $kategorie->cat_ID;
$posts = get_posts(\'category=\'. $cat .\'&posts_per_page=-1\');
foreach($posts as $post) { ?>
<li>
<a <?php if ($post->ID == $pid){echo \'class="current"\';} ?> href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
<li>
<? }
echo \'</ul>\';
echo \'</li>\';
}
?>
</ul>
</div>
<?php
if (is_single()){
?>
<script>
jQuery(document).ready(function(){
$( ".topnav" ).accordion( "option", "active", <?php echo $cat_count; ?> );
});
</script>
<?php
}
