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<?php interface RegularInterface {} interface BetterInterface extends RegularInterface {} class Thing implements BetterInterface { } class RegularClass { public static function doSomething(RegularInterface $thing) { echo 'hello'; } } class BetterClass extends RegularClass { public static function doSomething(BetterInterface $thing) { echo 'hello'; } } $thing = new Thing(); BetterClass::doSomething($thing);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of BetterClass::doSomething(BetterInterface $thing) must be compatible with RegularClass::doSomething(RegularInterface $thing) in /in/b79hn on line 16
Process exited with code 255.

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