Online PHP editor | refs for 2LVU4

<?php class Enum { private static $cache = []; public static function __callStatic($name, $params) { $className = get_called_class(); if(!isset(self::$cache[$name])) { self::$cache[$name] = new $className($className::$$name); } return self::$cache[$name]; } } class Operator { public const A = 22; private const EQUALS = ['=']; private $symbol; private function __const(string $symbol) { $this->symbol = $symbol; } } $a = "A"; var_dump(Operator::$a); var_dump(Enum::EQUALS());