protected static function getPluginArchivers()
    {
        if (empty(static::$archivers)) {
            $pluginNames = \Piwik\Plugin\Manager::getInstance()->getActivatedPlugins();
            $archivers = array();
            foreach ($pluginNames as $pluginName) {
                $archivers[$pluginName] = self::getPluginArchiverClass($pluginName);
            }
            static::$archivers = array_filter($archivers);
        }
        return static::$archivers;
    }
protected static function getPluginArchivers()
    {
        if (empty(static::$archivers)) {
            $pluginNames = \Piwik\Plugin\Manager::getInstance()->getActivatedPlugins();
            $archivers = array();
            foreach ($pluginNames as $pluginName) {
                $archivers[$pluginName] = self::getPluginArchiverClass($pluginName);
            }
            static::$archivers = array_filter($archivers);
        }
        return static::$archivers;
    }
protected static function getPluginArchivers ( ) { if ( empty ( static :: $ archivers ) ) { $ pluginNames = \ Piwik \ Plugin \ Manager :: getInstance ( ) -> getActivatedPlugins ( ) ; $ archivers = array ( ) ; foreach ( $ pluginNames as $ pluginName ) { $ archivers [ $ pluginName ] = self :: getPluginArchiverClass ( $ pluginName ) ; } static :: $ archivers = array_filter ( $ archivers ) ; } return static :: $ archivers ; }
Loads Archiver class from any plugin that defines one.

@return \Piwik\Plugin\Archiver[]
Loads Archiver class from any plugin that defines one .