Online PHP editor | refs for EjqOB

@ 2015-12-11T15:45:01Z

<?php
class X {}

function test(int $number = null):?X {
    return null;
}

echo test();

class Car {
    
    protected function startEngine($key = false){
        
        if($key === true) {
            
            $runningEngine = true;
        
        }
        
        print_r($runningEngine);
        return $runningEngine;
        
    }
    
}