Override construct function with optional argument should not produce fatal error

Description

The following code:

<?php
    interface MyInterface1 { public function __construct(?string $name = null); }
    interface MyInterface2 { public function __construct(?string $name = null, ?int $id = null); }

    interface MyInterface3 extends MyInterface1, MyInterface2 { }

Resulted in this output:

PHP Fatal error:  Declaration of MyInterface1::__construct(?string $name = null) must be compatible with MyInterface2::__construct(?string $name = null, ?int $id = null) in php shell code on line 1

But I expected no error and the following code works as expected:

<?php
    interface MyInterface1 { public function __construct(?string $name = null); }
    interface MyInterface2 { public function __construct(?string $name = null, ?int $id = null); }

    interface MyInterface4 extends MyInterface2, MyInterface1 { }

PHP Version

PHP 8.4.24 (cli) (built: Jul 30 2026 15:23:13) (NTS)
Copyright (c) The PHP Group
Built by Ubuntu
Zend Engine v4.4.24, Copyright (c) Zend Technologies
    with Zend OPcache v8.4.24, Copyright (c), by Zend Technologies

Operating System

Ubuntu 24.04.4 LTS

Reproduce los dos fragmentos de herencia de interfaces en PHP 8.4.24, comparando el orden de las interfaces padre y el error de compatibilidad del constructor resultante. Empieza siguiendo el recorrido del engine que valida los métodos de interfaz heredados; el trabajo estará terminado cuando ambos órdenes de declaración se comporten de forma coherente sin el error fatal informado y una prueba de regresión cubra el caso.