return true to win

<?php

class Bar
{
    private $a;

    public function __construct($a)
    {
        $this->a = (bool) $a;
    }

    public function a()
    {
        return $this->a;
    }
}

function foo(callable $x)
{
    $object = new Bar(false);
    $x($object);
    return $object->a();
}

foo(

)

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Absolute best score: 27

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