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<?php interface Foo { public function doSomething(int $foo = null): void; } class Bar implements Foo { public function doSomething(?int $foo = null): void { } } class ExtendedBar extends Bar { public function doSomething(int $foo = null): void { parent::doSomething($foo); } } interface Foo2 { public function doSomething(?int $foo = null): void; } class Bar2 implements Foo2 { public function doSomething(int $foo = null): void { } }
Output for git.master_jit, git.master
Deprecated: Foo::doSomething(): Implicitly marking parameter $foo as nullable is deprecated, the explicit nullable type must be used instead in /in/VmY1C on line 5 Deprecated: ExtendedBar::doSomething(): Implicitly marking parameter $foo as nullable is deprecated, the explicit nullable type must be used instead in /in/VmY1C on line 18 Deprecated: Bar2::doSomething(): Implicitly marking parameter $foo as nullable is deprecated, the explicit nullable type must be used instead in /in/VmY1C on line 31

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