Online PHP editor | output for UdIis

<?php interface Printable { public function __toString(); } class MyPrintableClass { public $myNumericProperty; public function __construct() { $this->myNumericProperty = 10; } public function __toString() { return 'My numeric property is ' . $this->myNumericProperty; } } function printSomething(string $printable) { echo $printable; } $printable = new MyPrintableClass(); printSomething((string) $printable); printSomething("a real string"); printSomething((string)1234); printSomething((string)1.2); printSomething((string)true);