<?php
class Tree
{
    public function __construct()
    {
        var_dump('good');
    }

    public function __destruct()
    {
        var_dump('bad');
    }
}

class Candy
{
    public function ThrowError()
    {
        TRIGGER_ERROR('Go', E_USER_ERROR);
    }

    public function HandleError()
    {
        exit;
    }

    public function Go()
    {
        set_error_handler([$this, 'HandleError']);
        return new Tree($this->ThrowError());
    }
}

$C = new Candy();
$C->Go();

?>