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run code in 300+ PHP versions simultaneously
<?php class A { public function something() { // important logic $this->onSomethingHook(); // more important logic } } class B extends A { protected function onSomethingHook() { // Custom logic here, which will be called from class A echo 'Hello'; } } $b = new B; $b->something();
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Hello

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144.94 ms | 407 KiB | 5 Q