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<?php interface ISingleton { public static function getInstance(): ISingleton; } abstract class Singleton implements ISingleton { private static $_instances = []; final private function __construct () {} final private function __clone() {} final private function __wakeup() {} final public static function getInstance() : ISingleton { self::$_instances[static::class] = self::$_instances[static::class] ?? new static(); return self::$_instances[static::class]; } } class Flextype extends Singleton { } var_export(Flextype::getInstance());
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Private methods cannot be final as they are never overridden by other classes in /in/m7AbZ on line 13 Warning: Private methods cannot be final as they are never overridden by other classes in /in/m7AbZ on line 14 Warning: The magic method Singleton::__wakeup() must have public visibility in /in/m7AbZ on line 14 \Flextype::__set_state(array( ))

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