const的PHP接口继承

我想在PHP中这样做:

interface trollTypeInterface
{
    // ????
    public function scareNaughtyKids()
}
interface trollFrozenInterface extends trollTypeInterface
{
    const COLOR = "lightblue and white"
    public function changeSnowColorToYellow();
}
interface trollForestInterface extends trollTypeInterface
{
    const COLOR = "bronze and green"
    public function cleanUpHollowInTheTree();
}
interface trollUfoInterface extends trollTypeInterface
{
    //forgotten const COLOR should cause error
}

如何判断，所有从父trollTypeInterface出生的接口必须有const COLOR ??如果没有声明颜色，会产生错误吗?我想有100%的信心，我可以使用这个Const，当我运行RandomFunction(trollTypeInterface $troll);