3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface BarInterface { } interface FooInterface { public function getBar(): BarInterface; } class Foo implements FooInterface { public function getBar: BarInterface() { return null; } } $foo = new Foo(); $foo->getBar();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected ':', expecting '(' in /in/5WIYX on line 10
Process exited with code 255.
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172.29 ms | 1395 KiB | 36 Q