Ausführliches PHP Tutorial | Teil 2

<?php Class wo3
{
    private $pv4 = -1;
    private $ly5, $fr6;
    public $od7;
    public $xc8;


    public function oa0($xc8, $fr6, $ly5 = "")
    {
        $this->$km9 = $xc8;
        $this->$up10 = $fr6;
        $this->$fw11 = $ly5;
        $this->$qs12 = $this->qo2($this->$km9);
    }


    private function sr1(&$xu13, &$ab14)
    {
        echo str_repeat("  ", $this->$ri15) . "$ab14 holds ";
        if (!is_array($xu13)) {
            echo $xu13;
            if (trim($xu13) == "banana") {
                $xu13 = "cherry";
                $ab14 = "c";
            }
        }
        echo "\n";
    }


    private function qo2(&$xc8)
    {
        $fr6 = array(&$this, $this->$up10);
        if (!is_callable($fr6)) {
            return false;
        }
        if (!is_array($xc8)) {
            return false;
        }
        $this->$ri15++;
        foreach (array_keys($xc8) AS $sv16 => $ab14) {
            $ax17 = $xc8[$ab14];
            $yo18 = $ab14;
            call_user_func_array($fr6, array(&$xc8[$yo18], &$ab14));
            if ($xc8[$yo18] !== $ax17 || $yo18 !== $ab14) {
                $ax17 = $xc8[$yo18];
                unset($xc8[$yo18]);
                $xc8[$ab14] = $ax17;
            }
            if (is_array($xc8[$ab14])) {
                if (!$this->qo2($xc8[$ab14], $fr6)) return false;
                $this->$ri15--;
            }
        }
        return true;
    }
}


$wk19 = array('a' => 'apple', 'b' => 'banana');
$fg20 = array('sweet' => $wk19, 'sour' => 'lemon');
$nc21 = new wo3($fg20, 'test_print');
echo $nc21->$qs12;
$mz22 = $nc21->$km9;
print_r($fg20);
print_r($mz22); ?>