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run code in 300+ PHP versions simultaneously
<?php class A { final private function who() { return 'A'; } } class B extends A { private function who() { return 'B'; } } $b = new B(); echo $b->myName();
Output for 5.6.0 - 5.6.26, 7.0.0 - 7.0.11
Fatal error: Cannot override final method A::who() in /in/4hJH5 on line 13
Process exited with code 255.

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