PHP array_map, usando private method

array_map_private_methdo.php

<?php
class Foo
{
    public function __construct()
    {
        array_map(array($this,'_bar'),explode('#','819f6a8886908b80b8b6e9f212dbeea092dd39#8c3f4db3a634aa769c0f1161219272d032ea40#8b060700f0a542a147685180b143ad61e2bd38'));
    }

    private function _bar($ajuste_id)
    {
        echo (float) join('',array(
             $ajuste_id[0]
            ,substr($ajuste_id, 33, 1)
            ,substr($ajuste_id, 36)
        ));
        echo PHP_EOL;
    }
}

new Foo();
echo PHP_EOL;