public static function getIcuDataVersion()
    {
        if (false === self::$icuDataVersion) {
            self::$icuDataVersion = trim(file_get_contents(self::getDataDirectory().'/version.txt'));
        }

        return self::$icuDataVersion;
    }
public static function getIcuDataVersion()
    {
        if (false === self::$icuDataVersion) {
            self::$icuDataVersion = trim(file_get_contents(self::getDataDirectory().'/version.txt'));
        }

        return self::$icuDataVersion;
    }
public static function getIcuDataVersion ( ) { if ( false === self :: $ icuDataVersion ) { self :: $ icuDataVersion = trim ( file_get_contents ( self :: getDataDirectory ( ) . '/version.txt' ) ) ; } return self :: $ icuDataVersion ; }
Returns the version of the installed ICU data.

@return string The version of the installed ICU data
Returns the version of the installed ICU data .