WordPress at a glance
функция не описана

wp_atom_server::__callStatic() public WP 1.0

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

Хуков нет.

Возвращает

Null. Ничего.

Использование

$result = wp_atom_server::__callStatic( $name, $arguments );

Код wp_atom_server::__callStatic() WP 5.5.1

<?php
public static function __callStatic( $name, $arguments ) {
	_deprecated_function( __CLASS__ . '::' . $name, '3.5.0', 'the Atom Publishing Protocol plugin' );
}