Some magic done with PHP. Please, do NOT try this at home.
(new TwistedPhpApp())->sayHello('world'); // TwistedPhpApp app says: Hello world!
(new TwistedPhpApp('First'))->sayHello(); // First app says: Hello!
(new TwistedPhpApp('Second'))->sayWelcome('uncle'); // Second app says: Welcome uncle!
(new TwistedPhpApp('Third'))->sayWelcomeToAllOf('you'); // Third app says: Welcome to all of you!
(new TwistedPhpApp(false))->sleep(); // Third app sleeps!
(new TwistedPhpApp('Fifth'))->hate('you all'); // Fifth app hates: You all!
(new TwistedPhpApp('Sixth'))->hateYou('all'); // Sixth app hates: You all!
(new TwistedPhpApp('Seventh'))->hateYouAll(); // Seventh app hates: You all!
(new TwistedPhpApp('Eighth'))
->sing() // Eighth app sings!
->eat('breakfast') // Eighth app eats: Breakfast!
->loveEverybody(); // Eighth app loves: Everybody!