Online PHP editor | refs for piUFm

<?php trait foo { static $bar = []; public function a() { static::$bar = ["foo"]; echo "Goodbye Moon"; } } class bing { use foo; public function a() { foo::a(); var_dump(self::$bar, foo::$bar); } public function b() { foo::a(); self::$bar[] = "bat"; var_dump(self::$bar, foo::$bar); } } $bing = new bing; $bing->a(); $bing->b();