i want to ERC20 token balance with your module;
similar code for web3p;
$contract = new Contract($web3->provider, $string);
$contract->at($contractAddress)->call('balanceOf', $address, function ($err, $account) use (&$balance) {
if ($err !== null) {
echo 'Error: ' . $err->getMessage();
return;
}
$balance=goThen($account);
});