3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class TestClass{ abstract protected function test(); } class NewClass extends TestClass{ public function test(){ echo "hello"; } } $newclass = new NewClass(); $newclass->test();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
hello
preferences:
145.81 ms | 404 KiB | 173 Q