3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Foo { public function bar(); } class Bat implements Foo { public function bar($baz) { echo "test"; } }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Declaration of Bat::bar($baz) must be compatible with Foo::bar() in /in/r1oGq on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of Bat::bar($baz) must be compatible with Foo::bar() in /in/r1oGq on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Declaration of Bat::bar() must be compatible with Foo::bar() in /in/r1oGq on line 7
Process exited with code 255.

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