get_category_children

函数
get_category_children ( $id, $before = '/', $after = '', $visited = array() )
参数
  • (int) $id Category ID to retrieve children.
    Required:
  • (string) $before Optional. Prepend before category term ID. Default '/'.
    Required:
    Default: '/'
  • (string) $after Optional. Append after category term ID. Default empty string.
    Required:
    Default: (empty)
  • (array) $visited Optional. Category Term IDs that have already been added. Default empty array.
    Required:
    Default: array()
返回值
  • (string)
相关
  • get_term_children()
定义位置
相关方法
get_term_children_get_term_childrenget_category_linkget_page_childrenget_category_parents
引入
1.2.0
弃用
2.8.0

get_category_children: 这个函数检索一个给定类别的子类别的类别ID数组。它需要两个参数:$category_id和$args。

检索术语ID前后分开的类别子女列表。

function get_category_children( $id, $before = '/', $after = '', $visited = array() ) {
	_deprecated_function( __FUNCTION__, '2.8.0', 'get_term_children()' );
	if ( 0 == $id )
		return '';

	$chain = '';
	/** TODO: Consult hierarchy */
	$cat_ids = get_all_category_ids();
	foreach ( (array) $cat_ids as $cat_id ) {
		if ( $cat_id == $id )
			continue;

		$category = get_category( $cat_id );
		if ( is_wp_error( $category ) )
			return $category;
		if ( $category->parent == $id && !in_array( $category->term_id, $visited ) ) {
			$visited[] = $category->term_id;
			$chain .= $before.$category->term_id.$after;
			$chain .= get_category_children( $category->term_id, $before, $after );
		}
	}
	return $chain;
}

常见问题

FAQs
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