Online PHP editor | refs for pE82s

<?php ini_set('display_errors', true); error_reporting(E_ALL); abstract class papa { public function papa() { var_dump(__CLASS__ . '-' . __FUNCTION__); } } class son extends papa { public function son() { var_dump(__CLASS__ . '-' . __FUNCTION__); parent::__construct(); } } abstract class mama { public function __construct() { var_dump(__CLASS__ . '-' . __FUNCTION__); } public function mama() { var_dump(__CLASS__ . '-' . __FUNCTION__); } } class daughter1 extends mama { public function daughter1() { var_dump(__CLASS__ . '-' . __FUNCTION__); parent::__construct(); } } class daughter2 extends mama { public function daughter2() { var_dump(__CLASS__ . '-' . __FUNCTION__); parent::mama(); } } var_dump('DAUGHTER calls parent::__construct'); $girl1 = new daughter1(); var_dump('DAUGHTER calls parent::mama'); $girl2 = new daughter2(); var_dump('SON'); $boy = new son();