Variable variables are considered unused on assignment left-hand side

[loilo]

Variable variables are considered unused when only appearing on the left-hand side of an assignment.

This is considered fine:

function fn()
{
    $foo = true;
    $var = 'foo';
    return $$var;
}

While this says $var is unused:

function fn()
{
    $foo = true;
    $var = 'foo';
    $$var = false;
}

($foo is marked unused in both cases, but I guess there's no way to avoid that without deeper program flow analysis.)

[sirbrillig]

Thanks! Wow, variable variables are tough. I created #87 to track the fact that they are hard to deal with.

In the mean time, #88 should solve this.

[loilo]

Thanks! 🙂