protected function installLocalData()
    {
        $localData = $this->extension->getManifest()->getLocalData();
        if(isset($localData['php'])) {
            $scripts = $localData['php'];
            $scripts = is_array($scripts) ? $scripts : array($scripts);
            foreach ($scripts as $script) {
                $this->runExtensionScript($script);
            }
        }
    }