3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class foo { public function bar($baz, $qux) {} } class baz extends foo { function bar($dummy) { } } new baz();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of baz::bar($dummy) must be compatible with foo::bar($baz, $qux) in /in/9PdSQ on line 11
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of baz::bar($dummy) should be compatible with foo::bar($baz, $qux) in /in/9PdSQ on line 11
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of baz::bar($dummy) should be compatible with foo::bar($baz, $qux) in /in/9PdSQ on line 14
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
Strict Standards: Declaration of baz::bar() should be compatible with foo::bar($baz, $qux) in /in/9PdSQ on line 14
preferences:
189.74 ms | 402 KiB | 229 Q