public function getRequiredPhpVersion()
    {
        @$packageInfo = $this->registry->packageInfo( 'ezcomponents', null, 'components.ez.no' );
        if ( array_key_exists( 'required', $packageInfo['dependencies'] ) )
        {
            return $packageInfo['dependencies']['required']['php']['min'];
        }
        return $packageInfo['dependencies']['php']['min'];
    }