3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class B { public static abstract function foo(); } class A extends B { public static function foo() { } } A::foo();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Output for 5.3.29, 5.4.25 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: Static function B::foo() should not be abstract in /in/V2pFe on line 7
Output for 4.3.0
Parse error: parse error, unexpected T_CLASS in /in/V2pFe on line 5
Process exited with code 255.

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