Method demo

examples/demo.php:1134–1145

()

class ClassStringVarDemo
{
    public function demo(): void
    {
        // new $var where $var holds a class-string
        $cls = Pen::class;
        $pen = new $cls;
        $pen->write();                            // resolves Pen from class-string

        // $var::staticMethod() where $var holds a class-string
        $userClass = User::class;
        $found = $userClass::findByEmail('test@example.com');
        $found->getEmail();                       // resolves User from class-string static call
    }
}