Pop\Form\Element::setMarked PHP Method

    public function setMarked($marked)
    {
        $this->marked = $this->isMultiple() ? array() : null;
        if (is_array($marked)) {
            foreach ($marked as $v) {
                if (is_array($this->value)) {
                    $inArray = false;
                    foreach ($this->value as $key => $val) {
                        if ($key == $v) {
                            $inArray = true;
                        } else {
                            if (is_array($val)) {
                                foreach ($val as $ky => $va) {
                                    if ($ky == $v) {
                                        $inArray = true;
                                    }
                                }
                            }
                        }
                    }
                    if ($inArray) {
                        $val = null;
                        if (!isset($this->value[$v])) {
                            foreach ($this->value as $vl) {
                                if (is_array($vl) && isset($vl[$v])) {
                                    $val = $v;
                                }
                            }
                        } else {
                            $val = $v;
                        }
                        if (is_array($this->marked)) {
                            $this->marked[] = $val;
                        } else {
                            $this->marked = $val;
                        }
                    }
                }
            }
        } else {
            if (is_array($this->value)) {
                if (array_key_exists($marked, $this->value) !== false) {
                    if (is_array($this->marked)) {
                        $this->marked[] = $marked;
                    } else {
                        $this->marked = $marked;
                    }
                }
            }
        }
        //print_r($this->marked);
        return $this;
    }