multicall error

[ygcool]

I want to use multicall to reduce the number of rpc requests, but I can't get the data needed for eth_call properly, thanks for your help.

solidity code: https://etherscan.io/address/0x5ba1e12693dc8f9c48aad8770482f4739beed696#code

php code:

<?php

require __DIR__ . '/vendor/autoload.php';

use Web3\Web3;
use Web3\Contract;
use Web3\Providers\HttpProvider;
use Web3\RequestManagers\HttpRequestManager;

$rpc_url = 'https://rpc.ankr.com/eth';
$web3 = new Web3(new HttpProvider(new HttpRequestManager($rpc_url, 30)));

$abiJson = '[{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall2.Call[]","name":"calls","type":"tuple[]"}],"name":"aggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes[]","name":"returnData","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall2.Call[]","name":"calls","type":"tuple[]"}],"name":"blockAndAggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes32","name":"blockHash","type":"bytes32"},{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall2.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBlockNumber","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockCoinbase","outputs":[{"internalType":"address","name":"coinbase","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockDifficulty","outputs":[{"internalType":"uint256","name":"difficulty","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockGasLimit","outputs":[{"internalType":"uint256","name":"gaslimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentBlockTimestamp","outputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getEthBalance","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLastBlockHash","outputs":[{"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"requireSuccess","type":"bool"},{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall2.Call[]","name":"calls","type":"tuple[]"}],"name":"tryAggregate","outputs":[{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall2.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"requireSuccess","type":"bool"},{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall2.Call[]","name":"calls","type":"tuple[]"}],"name":"tryBlockAndAggregate","outputs":[{"internalType":"uint256","name":"blockNumber","type":"uint256"},{"internalType":"bytes32","name":"blockHash","type":"bytes32"},{"components":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"returnData","type":"bytes"}],"internalType":"struct Multicall2.Result[]","name":"returnData","type":"tuple[]"}],"stateMutability":"nonpayable","type":"function"}]';
$abi = json_decode($abiJson, true);
$contractAddress = '0x5BA1e12693Dc8F9c48aAD8770482f4739bEeD696';

$contract = new Contract($web3->provider, $abi);

$data = $contract->at($contractAddress)->getData('aggregate', [["0xdAC17F958D2ee523a2206206994597C13D831ec7","0x70a0823100000000000000000000000028c6c06298d514db089934071355e5743bf21d60"],["0xdAC17F958D2ee523a2206206994597C13D831ec7","0x70a08231000000000000000000000000d6216fc19db775df9774a6e33526131da7d19a2c"]]);
echo $data;

// The correct data should be: 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

php error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, first array member is not a valid class name or object in /xxx/vendor/web3p/web3.php/src/Contracts/Ethabi.php:162

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