For the installation uses composer composer. Add this project in your composer.json:
"require": {
"noc-med/zf2-base58": "dev-master"
}
$base58 = $this->getServiceLocator()->get('ZfBase58');
echo $base58->encode(1523523532532532532);
echo $base58->decode("F429fgds");
Semih SARI - semih.sari@noc.com.tr