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run code in 200+ php & hhvm versions
Bugs & Features
<?php interface SomeInterface { public function getString() : string; } class SomeClass implements SomeInterface { public function getString() { return 'some string'; } } var_dump((new SomeClass())->getString());
based on kATNm
Output for 7.0.0 - 7.2.0
Fatal error: Declaration of SomeClass::getString() must be compatible with SomeInterface::getString(): string in /in/miJ1P on line 10
Process exited with code 255.
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/miJ1P on line 6
Process exited with code 255.