wp_find_hierarchy_loop

函数



      wp_find_hierarchy_loop ( $callback, $start, $start_parent, $callback_args = array() )

Access: Private

参数

(callable)
$callback
Function that accepts ( ID, $callback_args ) and outputs parent_ID.
Required: 是
(int)
$start
The ID to start the loop check at.
Required: 是
(int)
$start_parent
The parent_ID of $start to use instead of calling $callback( $start ). Use null to always use $callback
Required: 是
(array)
$callback_args
Optional. Additional arguments to send to $callback.
Required: 否

Default: array()

返回值

(array) IDs of all members of loop.

定义位置

wp-includes/functions.php
, line 6799

引入: 3.1.0

弃用: –

使用一个将对象ID映射到父级ID的回调函数来查找层次循环。

function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) {
	$override = is_null( $start_parent ) ? array() : array( $start => $start_parent );

	$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args );
	if ( ! $arbitrary_loop_member ) {
		return array();
	}

	return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true );
}

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