3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private const C1 = "a"; private const C2 = 'b'; } try { var_dump(constant('Foo::C1')); } catch(Error $e) { echo 'Caught',$e->getMessage(), PHP_EOL; } try{ Foo::C2; } catch(Error $e) { echo 'Caught',$e->getMessage() ,PHP_EOL; }

preferences:
50.03 ms | 409 KiB | 5 Q