我试图显示get\\u category\\u类别，将结果限制为只显示父级“666”的子类别。

因此，一篇帖子可能有很多类别，例如“1234”、“666”、“666/1341”、“5”、“5/17”，但我只想显示“666”的子帖子。

$args = array( \'numberposts\' => \'5\',\'post_status\' => \'publish\',\'category\' => \'1234\',\'category__not_in\' => \'680\', \'orderby\' => \'post_date\', \'order\' => \'DESC\' );
$recent_posts = wp_get_recent_posts($args);
{

///I want to return the category for each post in this loop that is within the "666" category.
///E.g get_the_category($recent[\'ID\']) where the category is a child of 666

echo "POST ID" . $recent[\'ID\'] . " CHILD CATEGORY ". $childcategory; 
}

上述循环将返回类别“1234”中的最后5个帖子，每个子类别为“666”。

e、 g。

邮政ID 10子类别1341邮政ID 11子类别1341邮政ID 14子类别99邮政ID 19子类别1341邮政ID 23子类别99

$categories=get_categories(
    array( \'parent\' => $cat->cat_ID )
);

$cat_list = [];
foreach ($categories as $c) {
    $cat_list[] = $c->term_id;
}

$args = array( \'numberposts\' => \'5\',\'post_status\' => \'publish\',\'category\' => $cat_list,\'category__not_in\' => \'680\', \'orderby\' => \'post_date\', \'order\' => \'DESC\' );

$query = new WP_Query( array( \'category__and\' => $cat_list ) );

array_map( function( $cat ) {
        if ( $cat->parent != 0 ) {
            return $cat;
        }
     },
     get_the_category()
);