ArticleList::getFilterSections PHP Method

    public function getFilterSections()
    {
        $translator = \Zend_Registry::get('container')->getService('translator');
        global $ADMIN_DIR, $g_user;
        require_once $GLOBALS['g_campsiteDir'] . '/classes/Publication.php';
        require_once $GLOBALS['g_campsiteDir'] . '/classes/Issue.php';
        require_once $GLOBALS['g_campsiteDir'] . '/classes/Section.php';
        require_once $GLOBALS['g_campsiteDir'] . '/classes/Author.php';
        foreach ($_REQUEST['args'] as $arg) {
            $_REQUEST[$arg['name']] = $arg['value'];
        }
        if ($_REQUEST['publication'] > 0) {
            $publication = $_REQUEST['publication'];
        } else {
            $publication = null;
        }
        $language = null;
        if ($_REQUEST['issue'] > 0) {
            $issueArray = explode("_", $_REQUEST['issue']);
            $issue = $issueArray[1];
            if (isset($issueArray[2])) {
                $language = $issueArray[2];
            }
        } else {
            $issue = null;
        }
        if ($_REQUEST['language'] > 0) {
            $language = $_REQUEST['language'];
        }
        // get sections
        $sections = array();
        $section_objects = Section::GetSections($publication, $issue, $language);
        foreach ($section_objects as $section) {
            if (!isset($sections[$section->getSectionNumber()])) {
                $sections[$section->getSectionNumber()] = $section;
            }
        }
        $newSections = array();
        foreach ($sections as $section) {
            $newSections[] = array('val' => $section->getPublicationId() . '_' . $section->getIssueNumber() . '_' . $section->getLanguageId() . '_' . $section->getSectionNumber(), 'name' => $section->getName());
        }
        $sectionsNo = is_array($newSections) ? sizeof($newSections) : 0;
        $menuSectionTitle = $sectionsNo > 0 ? $translator->trans('All Sections', array(), 'library') : $translator->trans('No sections found', array(), 'library');
        $returns = array();
        $returns['items'] = $newSections;
        $returns['itemsNo'] = $sectionsNo;
        $returns['menuItemTitle'] = $menuSectionTitle;
        return json_encode($returns);
    }