How to fixed trait method collision and rename method in php

one text

How to rename a method that conflict in PHP trait, rename and define insteadof in a single line.

trait Hello
{
    public function say()
    {
        return 'Hello';
    }
}

trait World
{
    public function say()
    {
        return 'World!';
    }
}

This one works perfectly

class HelloWorld
{
    use Hello, World {
        Hello::say insteadof World;
        Hello::say as sayHello;

        World::say insteadof Hello;
        World::say as sayWorld;
    }
}

$obj=new HelloWorld();
echo $obj->sayHello(). ' '.$obj->sayWorld(); //Hello World

How to write in a single line instead of and rename look like this

//not working
class HelloWorld
{
    use Hello, World {
        Hello::say insteadof World as sayHello;
        World::say insteadof Hello as sayWorld;
    }
}

$obj=new HelloWorld();
echo $obj->sayHello(). ' '.$obj->sayWorld(); //nothing

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