WordPress at a glance
функция не описана

WP_Hook::next() public WP 4.7.0

Moves forward to the next element.

It's a method of the class: WP_Hook{}

Хуков нет.

Возвращает

Array. Of callbacks at next priority.

Использование

$WP_Hook = new WP_Hook();
$WP_Hook->next();

Changelog

Since 4.7.0 Introduced.

Код WP_Hook::next() WP 5.5.1

<?php
public function next() {
	return next( $this->callbacks );
}