如何在wordpress admin中显示父类别下的子类别？在帖子上，类别框的格式如下所示：
类别1
第1.1子类第2类
在WordPress管理中显示类别的父子关系
2 个回复
最合适的回答,由SO网友:Domain 整理而成
编辑：
在帖子页面上，类别已经以分层方式显示，但带有复选框。因此，我假设您必须以以下格式在管理面板的某个位置显示所有类别/子类别的列表。
第1类，第1.1子类，第1.2子类，第2类，演示由您决定，我刚才给出了获取必要数据的逻辑，即所有类别和子类别的列表。
$arg1 = array(
\'parent\' => 0,
\'orderby\' => \'name\',
\'hide_empty\' => 0,
\'pad_counts\' => false
);
$categories = get_terms(\'category\', $arg1); //or use your custom taxonomy name
if( !empty($categories) && is_array($categories) ){
echo \'<ul>\';
foreach($categories as $cat){
echo \'<li>\'.$cat->name;
$arg2 = array(
\'child_of\' => $cat->term_id,
\'orderby\' => \'name\',
\'hide_empty\' => 0,
\'pad_counts\' => false
);
$sub_categories = get_terms(\'category\', $arg2); //or use your custom taxonomy name
if(!empty($sub_categories) && is_array($sub_categories)){
echo \'<ul>\';
foreach($sub_categories as $scat){
echo \'<li>\'.$scat->name.\'</li>\';
}
echo \'</ul>\';
}
echo \'</li>\';
}
echo \'</ul>\';
}
SO网友:prempal sharma
use this code for solving your problem.
<?php
$args = array( \'orderby\' =>\'name\',
\'texonomy\' =>\'category\',
\'child_of\' =>0,
\'parent\' =>0 );
$cats = get_categories($args);
foreach ($cats as $cat) {
echo $cat->name;
$arg = array(\'orderby\' => \'name\',
\'child_of\' =>0,
\'parent\' =>$cat->term_id);
$sub_cats =get_categories($arg);
foreach ($sub_cats as $sub) {
echo \'<hr><br>\';
echo \'<h3>\'.$sub->name.\'</h3>\';
echo \'<hr><br>\';
$args = array(
\'post_type\' => \'post\',
\'tax_query\' => array(
array(
\'taxonomy\' => \'category\',
\'terms\' => $sub->term_id,
),
),
);
$query = new WP_query( $args);
//echo "<pre>"; print_r($query); echo "</pre>";
while($query->have_posts()) : $query->the_post();
echo "<br>";
the_title();
echo "<br>";
the_content();
endwhile;
echo "<hr>";
}
}
?>
结束