Contao\StringUtil::standardize PHP Метод

    public static function standardize($strString, $blnPreserveUppercase = false)
    {
        $arrSearch = array('/[^a-zA-Z0-9 \\.\\&\\/_-]+/', '/[ \\.\\&\\/-]+/');
        $arrReplace = array('', '-');
        $strString = html_entity_decode($strString, ENT_QUOTES, $GLOBALS['TL_CONFIG']['characterSet']);
        $strString = static::stripInsertTags($strString);
        $strString = Utf8::toAscii($strString);
        $strString = preg_replace($arrSearch, $arrReplace, $strString);
        if (is_numeric(substr($strString, 0, 1))) {
            $strString = 'id-' . $strString;
        }
        if (!$blnPreserveUppercase) {
            $strString = strtolower($strString);
        }
        return trim($strString, '-');
    }

 /**
  * Generate the widget and return it as string
  *
  * @return string
  */
 public function generate()
 {
     $arrOptions = array();
     if (!$this->multiple && count($this->arrOptions) > 1) {
         $this->arrOptions = array($this->arrOptions[0]);
     }
     // The "required" attribute only makes sense for single checkboxes
     if ($this->mandatory && !$this->multiple) {
         $this->arrAttributes['required'] = 'required';
     }
     /** @var AttributeBagInterface $objSessionBag */
     $objSessionBag = \System::getContainer()->get('session')->getBag('contao_backend');
     $state = $objSessionBag->get('checkbox_groups');
     // Toggle the checkbox group
     if (\Input::get('cbc')) {
         $state[\Input::get('cbc')] = isset($state[\Input::get('cbc')]) && $state[\Input::get('cbc')] == 1 ? 0 : 1;
         $objSessionBag->set('checkbox_groups', $state);
         $this->redirect(preg_replace('/(&(amp;)?|\\?)cbc=[^& ]*/i', '', \Environment::get('request')));
     }
     $blnFirst = true;
     $blnCheckAll = true;
     foreach ($this->arrOptions as $i => $arrOption) {
         // Single dimension array
         if (is_numeric($i)) {
             $arrOptions[] = $this->generateCheckbox($arrOption, $i);
             continue;
         }
         $id = 'cbc_' . $this->strId . '_' . \StringUtil::standardize($i);
         $img = 'folPlus.svg';
         $display = 'none';
         if (!isset($state[$id]) || !empty($state[$id])) {
             $img = 'folMinus.svg';
             $display = 'block';
         }
         $arrOptions[] = '<div class="checkbox_toggler' . ($blnFirst ? '_first' : '') . '"><a href="' . $this->addToUrl('cbc=' . $id) . '" onclick="AjaxRequest.toggleCheckboxGroup(this,\'' . $id . '\');Backend.getScrollOffset();return false">' . \Image::getHtml($img) . '</a>' . $i . '</div><fieldset id="' . $id . '" class="tl_checkbox_container checkbox_options" style="display:' . $display . '"><input type="checkbox" id="check_all_' . $id . '" class="tl_checkbox" onclick="Backend.toggleCheckboxGroup(this, \'' . $id . '\')"> <label for="check_all_' . $id . '" style="color:#a6a6a6"><em>' . $GLOBALS['TL_LANG']['MSC']['selectAll'] . '</em></label>';
         // Multidimensional array
         foreach ($arrOption as $k => $v) {
             $arrOptions[] = $this->generateCheckbox($v, standardize($i) . '_' . $k);
         }
         $arrOptions[] = '</fieldset>';
         $blnFirst = false;
         $blnCheckAll = false;
     }
     // Add a "no entries found" message if there are no options
     if (empty($arrOptions)) {
         $arrOptions[] = '<p class="tl_noopt">' . $GLOBALS['TL_LANG']['MSC']['noResult'] . '</p>';
         $blnCheckAll = false;
     }
     if ($this->multiple) {
         return sprintf('<fieldset id="ctrl_%s" class="tl_checkbox_container%s"><legend>%s%s%s%s</legend><input type="hidden" name="%s" value="">%s%s</fieldset>%s', $this->strId, $this->strClass != '' ? ' ' . $this->strClass : '', $this->mandatory ? '<span class="invisible">' . $GLOBALS['TL_LANG']['MSC']['mandatory'] . ' </span>' : '', $this->strLabel, $this->mandatory ? '<span class="mandatory">*</span>' : '', $this->xlabel, $this->strName, $blnCheckAll ? '<input type="checkbox" id="check_all_' . $this->strId . '" class="tl_checkbox" onclick="Backend.toggleCheckboxGroup(this,\'ctrl_' . $this->strId . '\')' . ($this->onclick ? ';' . $this->onclick : '') . '"> <label for="check_all_' . $this->strId . '" style="color:#a6a6a6"><em>' . $GLOBALS['TL_LANG']['MSC']['selectAll'] . '</em></label><br>' : '', str_replace('<br></fieldset><br>', '</fieldset>', implode('<br>', $arrOptions)), $this->wizard);
     } else {
         return sprintf('<div id="ctrl_%s" class="tl_checkbox_single_container%s"><input type="hidden" name="%s" value="">%s</div>%s', $this->strId, $this->strClass != '' ? ' ' . $this->strClass : '', $this->strName, str_replace('<br></div><br>', '</div>', implode('<br>', $arrOptions)), $this->wizard);
     }
 }