trouble trying to send data about web3.php

[hafizah65]

update: i change the code and i'm getting "Call to a member function signTransaction() on bool"

   $eth = new Eth($web3->getProvider());
    // Create the transaction object
    $transaction = [
        'from' => $senderAddress,
        'to' => $contractAddress,
        'data' => $contract->getData($functionName, 5678, $data_bc),
        //'data' => '0x'. $contract->getData($functionName, 5678, $data_bc),

    // Sign the transaction
    $signedTransaction = $eth->accounts->signTransaction($transaction, $privateKey); //FIXME
    ];

    // Send the transaction to the network
    $transactionHash = $eth->sendRawTransaction($signedTransaction);

    echo 'Transaction Hash: ' . Utils::toString($transactionHash) . PHP_EOL;

    // Wait for the transaction to be mined
    $receipt = $eth->getTransactionReceipt($transactionHash);
    if ($receipt !== null) {
        echo 'Transaction Mined' . PHP_EOL;
    }