Contao\Message::generateUnwrapped PHP Method

    public static function generateUnwrapped($strScope = TL_MODE)
    {
        $strMessages = '';
        foreach (static::getTypes() as $strType) {
            $strClass = strtolower($strType);
            $arrMessages = \System::getContainer()->get('session')->getFlashBag()->get(static::getFlashBagKey($strType, $strScope));
            foreach (array_unique($arrMessages) as $strMessage) {
                if ($strType == 'TL_RAW') {
                    $strMessages .= $strMessage;
                } else {
                    $strMessages .= '<p class="' . $strClass . '">' . $strMessage . '</p>';
                }
            }
        }
        return trim($strMessages);
    }

 /**
  * Generate the module
  *
  * @return string
  */
 public function run()
 {
     $arrJobs = array();
     /** @var BackendTemplate|object $objTemplate */
     $objTemplate = new \BackendTemplate('be_purge_data');
     $objTemplate->isActive = $this->isActive();
     $objTemplate->message = \Message::generateUnwrapped();
     // Run the jobs
     if (\Input::post('FORM_SUBMIT') == 'tl_purge') {
         $purge = \Input::post('purge');
         if (!empty($purge) && is_array($purge)) {
             foreach ($purge as $group => $jobs) {
                 foreach ($jobs as $job) {
                     list($class, $method) = $GLOBALS['TL_PURGE'][$group][$job]['callback'];
                     $this->import($class);
                     $this->{$class}->{$method}();
                 }
             }
         }
         \Message::addConfirmation($GLOBALS['TL_LANG']['tl_maintenance']['cacheCleared']);
         $this->reload();
     }
     // Tables
     foreach ($GLOBALS['TL_PURGE']['tables'] as $key => $config) {
         $arrJobs[$key] = array('id' => 'purge_' . $key, 'title' => $GLOBALS['TL_LANG']['tl_maintenance_jobs'][$key][0], 'description' => $GLOBALS['TL_LANG']['tl_maintenance_jobs'][$key][1], 'group' => 'tables', 'affected' => '');
         // Get the current table size
         foreach ($config['affected'] as $table) {
             $objCount = $this->Database->execute("SELECT COUNT(*) AS count FROM " . $table);
             $arrJobs[$key]['affected'] .= '<br>' . $table . ': <span>' . sprintf($GLOBALS['TL_LANG']['MSC']['entries'], $objCount->count) . ', ' . $this->getReadableSize($this->Database->getSizeOf($table), 0) . '</span>';
         }
     }
     $strCachePath = str_replace(TL_ROOT . DIRECTORY_SEPARATOR, '', \System::getContainer()->getParameter('kernel.cache_dir'));
     // Folders
     foreach ($GLOBALS['TL_PURGE']['folders'] as $key => $config) {
         $arrJobs[$key] = array('id' => 'purge_' . $key, 'title' => $GLOBALS['TL_LANG']['tl_maintenance_jobs'][$key][0], 'description' => $GLOBALS['TL_LANG']['tl_maintenance_jobs'][$key][1], 'group' => 'folders', 'affected' => '');
         // Get the current folder size
         foreach ($config['affected'] as $folder) {
             $total = 0;
             $folder = sprintf($folder, $strCachePath);
             // Only check existing folders
             if (is_dir(TL_ROOT . '/' . $folder)) {
                 $objFiles = Finder::create()->in(TL_ROOT . '/' . $folder)->files();
                 $total = iterator_count($objFiles);
             }
             $arrJobs[$key]['affected'] .= '<br>' . $folder . ': <span>' . sprintf($GLOBALS['TL_LANG']['MSC']['files'], $total) . '</span>';
         }
     }
     // Custom
     foreach ($GLOBALS['TL_PURGE']['custom'] as $key => $job) {
         $arrJobs[$key] = array('id' => 'purge_' . $key, 'title' => $GLOBALS['TL_LANG']['tl_maintenance_jobs'][$key][0], 'description' => $GLOBALS['TL_LANG']['tl_maintenance_jobs'][$key][1], 'group' => 'custom');
     }
     $objTemplate->jobs = $arrJobs;
     $objTemplate->action = ampersand(\Environment::get('request'));
     $objTemplate->headline = $GLOBALS['TL_LANG']['tl_maintenance']['clearCache'];
     $objTemplate->job = $GLOBALS['TL_LANG']['tl_maintenance']['job'];
     $objTemplate->description = $GLOBALS['TL_LANG']['tl_maintenance']['description'];
     $objTemplate->submit = \StringUtil::specialchars($GLOBALS['TL_LANG']['tl_maintenance']['clearCache']);
     $objTemplate->help = \Config::get('showHelp') && $GLOBALS['TL_LANG']['tl_maintenance']['cacheTables'][1] != '' ? $GLOBALS['TL_LANG']['tl_maintenance']['cacheTables'][1] : '';
     return $objTemplate->parse();
 }