3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface fooable { public function foo(); } trait Foo implements fooable { public function foo() { echo "hi"; } } class Bar { use Foo; } $b = new Bar; $b->foo(); var_dump($b instanceof Bar); var_dump($b instanceof Foo);
Output for 5.4.0 - 5.4.32
Fatal error: Cannot use 'fooable' as interface on 'Foo' since it is a Trait in /in/4D249 on line 6
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/4D249 on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/4D249 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/4D249 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/4D249 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/4D249 on line 2
Process exited with code 255.
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