3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface TestInterface {} interface FooInterface { public function bar(TestInterface $variable); } class Foo implements FooInterface { public function bar($variable) {} } $foo = new Foo; $foo->bar('test');
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Fatal error: Declaration of Foo::bar($variable) must be compatible with FooInterface::bar(TestInterface $variable) in /in/BZ6bB on line 13
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Declaration of Foo::bar() must be compatible with FooInterface::bar(TestInterface $variable) in /in/BZ6bB on line 14
Process exited with code 255.
preferences:
163.98 ms | 402 KiB | 200 Q