Elgg\BootService::invalidateCache PHP Метод

    public function invalidateCache()
    {
        $CONFIG = _elgg_services()->config->getStorageObject();
        // this gets called a lot on plugins page, avoid thrashing cache
        static $cleared = false;
        if (!$cleared) {
            $this->getStashItem($CONFIG)->clear();
            $cleared = true;
        }
    }

 /**
  * Add or update a config setting.
  *
  * Plugin authors should use elgg_set_config().
  *
  * If the config name already exists, it will be updated to the new value.
  *
  * @note Internal: These settings are stored in the dbprefix_config table and read
  * during system boot into $CONFIG.
  *
  * @note Internal: The value is serialized so we maintain type information.
  *
  * @param string $name  The name of the configuration value
  * @param mixed  $value Its value
  *
  * @return bool
  */
 function set($name, $value)
 {
     $name = trim($name);
     // cannot store anything longer than 255 characters in db, so catch before we set
     if (elgg_strlen($name) > 255) {
         $this->logger->error("The name length for configuration variables cannot be greater than 255");
         return false;
     }
     $this->CONFIG->{$name} = $value;
     $dbprefix = $this->CONFIG->dbprefix;
     $sql = "\n\t\t\tINSERT INTO {$dbprefix}config\n\t\t\tSET name = :name,\n\t\t\t\tvalue = :value\n\t\t\tON DUPLICATE KEY UPDATE value = :value\n\t\t";
     $params = [':name' => $name, ':value' => serialize($value)];
     $version = (int) $this->CONFIG->version;
     if (!empty($version) && $version < 2016102500) {
         // need to do this the old way as long as site_guid columns have not been dropped
         $sql = "\n\t\t\t\tINSERT INTO {$dbprefix}config\n\t\t\t\tSET name = :name,\n\t\t\t\t\tvalue = :value,\n\t\t\t\t\tsite_guid = :site_guid\n\t\t\t\tON DUPLICATE KEY UPDATE value = :value\n\t\t\t";
         $params[':site_guid'] = 1;
     }
     $result = $this->db->insertData($sql, $params);
     $this->boot->invalidateCache();
     return $result !== false;
 }