Online PHP editor | output for v25j9

<?php class Foo { private ?int $id; private ?string $name; /** * @param null|int<1, 20> $id */ private function __construct(?int $id = null, ?string $name = null) { $this->id = $id; $this->name = $name; } final public static function withId(int $id) : self { if ($id < 1 || $id > 20) { throw new \Exception(); } $self = new self; $self->__construct($id); return $self; } } class Bar { private ?int $id; private ?string $name; /** * @param null|int<1, 20> $id */ private function __construct(?int $id = null, ?string $name = null) { $this->id = $id; $this->name = $name; } final public static function withId(int $id) : self { if ($id < 1 || $id > 20) { throw new \Exception(); } return new self($id); } } $foo = Foo::withId(1); var_dump($foo); $bar = Bar::withId(1); var_dump($bar);