$nome_bd = "usuario_cpanel" . md5(uniqid(time()));

$db_host = "minha_url";
$cpuser = "meu_usuario";
$cppass = "minha_senha";

$xmlapi = new xmlapi($db_host);
$xmlapi->set_port(2083);
$xmlapi->password_auth($cpuser, $cppass);
$xmlapi->set_debug(1);

print($xmlapi->api1_query($cpuser, 'Mysql', 'adddb', array($nome_bd)));

$xmlapi->api1_query($cpuser, 'Mysql', 'adduserdb', array($nome_bd, 'usuario_bd', 'all'));

[09-Aug-2018 14:38:14 America/Sao_Paulo] Some error message here