WordPress开发手册:get_category_children()

函数原型

get_category_children( int $id, string $before = ‘/’, string $after = ”, array $visited = array() ): string

函数描述

是否弃用

Warning: This function has been deprecated. Use get_term_children() instead.

函数参数

$id
int
Required

Category ID to retrieve children.

$before
string
Optional

Prepend before category term ID. Default '/'.

Default: '/'

$after
string
Optional

Append after category term ID.

Default: ''

$visited
array
Optional

Category Term IDs that have already been added.

Default: array()

函数返回值

函数位置

函数源码

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;
}

源码链接

WordPress
Github

变更日志