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<?php abstract class HiddenFactory { protected function __construct() { } protected static function create() { } } class B extends HiddenFactory {} class A extends HiddenFactory { public static function createB() { return B::create(); } } $b = A::createB(); echo get_class($b);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: get_class(): Argument #1 ($object) must be of type object, null given in /in/gS1Zs:29 Stack trace: #0 {main} thrown in /in/gS1Zs on line 29
Process exited with code 255.

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