<?php class User { public function main() { echo 'Main ' . '<br>'; } public function self() { echo 'Self '; self::main(); } public function stat() { echo 'Static '; static::main(); } } class SUser extends User { public function main() { echo 'Children ' . '<br>'; } } $obj = new SUser(); $obj->main(); $obj->self(); $obj->stat();