3v4l.org

run code in 300+ PHP versions simultaneously
<?php Class MyClass { public function foo(): array { return []; } } Class MyOtherClass extends MyClass { public function foo(): MyClass { return new MyClass(); } }
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.30, 5.6.7 - 5.6.14
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/D5AlG on line 5
Process exited with code 255.
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210.9 ms | 1400 KiB | 65 Q