PHP code example of sinyakinilya / ethereum-geth-client
1. Go to this page and download the library: Download sinyakinilya/ethereum-geth-client library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
sinyakinilya / ethereum-geth-client example snippets
use SinyakinIlya\Ethereum\Client;
use SinyakinIlya\Ethereum\Helper\Hash;
$walletAccount = '0x...';
//geth must be run with params: geth --rpc --rpcaddr 0.0.0.0 --rpcapi admin,miner,shh,txpool,personal,eth,net,web3
$ip = '..ip..';
$port = 8545;
$client = new Client($ip, $port);
$lastBlock = $client->callMethod('eth_blockNumber');
$currentBockNumber = Hash::hexToNumber($lastBlock);
$toTransactions = $fromTransactions = [];
do {
$block = $client->callMethod('eth_getBlockByNumber', [Hash::toHex($currentBockNumber), true]);
if (!is_array($block)) {
break;
}
foreach ($block['transactions'] as $transaction) {
if ($transaction['from'] == $walletAccount) {
$fromTransactions[$transaction['to']][] = $transaction;
} elseif ($transaction['to'] == $walletAccount) {
$toTransactions[$transaction['from']][] = $transaction;
}
}
echo 'Process block: ', $currentBockNumber--, PHP_EOL;
} while ($currentBockNumber >= 4000000);
file_put_contents('tr.json', json_encode(['f' => $fromTransactions, 't' => $toTransactions]));
use SinyakinIlya\Ethereum\Client;
use SinyakinIlya\Ethereum\Helper\Hash;
use SinyakinIlya\Ethereum\Helper\SmartContract;
$ip = '0.0.0.0'; // geth address
$addressSC = '0x0c328e06....';
$ownerAddress = '0x978bEE7F....';
$ABI = 'sc-abi.json'; // file with ABI for smart-contract
$senderAddress = '0x5237BC08b2FE....';
$senderPassPhrase = '..passphrase..';
$client = new Client($ip);
$sc = new SmartContract($client);
$sc->setAddress($addressSC);
$sc->setContractInterface(file_get_contents($ABI));
function sendTransferFrom($from, $txData, $passphrase)
{
global $sc, $client;
$functionSignature = 'transferFrom(address,address,uint256)'; //this is string you get from $sc->getFunctions();
$inputData = $sc->createSandRawData($functionSignature, $txData);
$params = new stdClass;
$params->from = $from;
$params->to = $sc->getAddress();
$params->gas = Hash::toHex(1000000);
$params->gasPrice = $client->callMethod('eth_gasPrice');
$params->value = Hash::toHex(0);
$params->data = $inputData[$functionSignature];
return $client->callMethod('personal_sendTransaction', [$params, $passphrase]);
}
$data = [
$ownerAddress, // from address
$senderAddress, // to adderss
12345 // amount tokens
];
$txHash = sendTransferFrom($senderAddress, $data, $senderPassPhrase);
echo $txHash, PHP_EOL;