3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface FooInterface { public function foo(); } trait FooTrait implements FooInterface { }
Output for 5.4.0 - 5.4.25
Fatal error: Cannot use 'FooInterface' as interface on 'FooTrait' since it is a Trait in /in/Srq0Z on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING in /in/Srq0Z on line 5
Process exited with code 255.

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