execution reverted - Githubissues

I try to transfer token to another account by laravel. error is

execution reverted

here is code


class Web3Controller extends Controller
{
       public function web3() {

$abi = json_decode('[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"tokens","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"tokenOwner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"acceptOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeSub","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeDiv","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"tokens","type":"uint256"},{"name":"data","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeMul","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"newOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"tokenAddress","type":"address"},{"name":"tokens","type":"uint256"}],"name":"transferAnyERC20Token","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"tokenOwner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"a","type":"uint256"},{"name":"b","type":"uint256"}],"name":"safeAdd","outputs":[{"name":"c","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"tokenOwner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"Approval","type":"event"}]');

$Bytecode = '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';

$contract = new Contract('https://ropsten.infura.io/v3/34bc013ca1124ee0af5004bfd1cfc454', $abi);

$contractAddress = '0x64Ababe58B9e195d20533F092C13CFaAD4143211';

$accountaddress = '0xeE01EDe04D42e1a51C99f2737B9E14Fc930a1fd4';
$toaddress ='0x5a86f0cafd4ef3ba4f0344c138afcc84bd1ed222';
$amount = 10;
    // call contract function

// $contract->at($contractAddress)

//              ->call('balanceOf', $accountaddress , function ($err, $data) {
//                if ($err !== null) {
//                  throw new Exception($err->getMessage());
//                }
//                dd($data);
//              });

$contract->at($contractAddress)
          ->call('transfer', $toaddress ,$amount , function ($err, $data) {
                if ($err !== null) {
                  throw new Exception($err->getMessage());
                }
                dd($data);
              });

   }

}

here is smart contract

pragma solidity ^0.4.24;

// ----------------------------------------------------------------------------
// 'Cryptnet' token contract
//
// Deployed to : 0xeE01EDe04D42e1a51C99f2737B9E14Fc930a1fd4
// Symbol      : CN
// Name        : Cryptnet Token
// Total supply: 100000000
// Decimals    : 18
//
// Enjoy.
//
// (c) by Moritz Neto with BokkyPooBah / Bok Consulting Pty Ltd Au 2017. The MIT Licence.
// ----------------------------------------------------------------------------

// ----------------------------------------------------------------------------
// Safe maths
// ----------------------------------------------------------------------------
contract SafeMath {
    function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
    function safeMul(uint a, uint b) public pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
    function safeDiv(uint a, uint b) public pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
}

// ----------------------------------------------------------------------------
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// ----------------------------------------------------------------------------
contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}

// ----------------------------------------------------------------------------
// Contract function to receive approval and execute function in one call
//
// Borrowed from MiniMeToken
// ----------------------------------------------------------------------------
contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}

// ----------------------------------------------------------------------------
// Owned contract
// ----------------------------------------------------------------------------
contract Owned {
    address public owner;
    address public newOwner;

    event OwnershipTransferred(address indexed _from, address indexed _to);

    constructor() public {
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address _newOwner) public onlyOwner {
        newOwner = _newOwner;
    }
    function acceptOwnership() public {
        require(msg.sender == newOwner);
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
        newOwner = address(0);
    }
}

// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
contract CryptnetToken is ERC20Interface, Owned, SafeMath {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint public _totalSupply;

    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;

    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    constructor() public {
        symbol = "CN";
        name = "Cryptnet Token";
        decimals = 18;
        _totalSupply = 100000000000000000000000000;
        balances[0xeE01EDe04D42e1a51C99f2737B9E14Fc930a1fd4] = _totalSupply;
        emit Transfer(address(0), 0xeE01EDe04D42e1a51C99f2737B9E14Fc930a1fd4, _totalSupply);
    }

    // ------------------------------------------------------------------------
    // Total supply
    // ------------------------------------------------------------------------
    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }

    // ------------------------------------------------------------------------
    // Get the token balance for account tokenOwner
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) public constant returns (uint balance) {
        return balances[tokenOwner];
    }

    // ------------------------------------------------------------------------
    // Transfer the balance from token owner's account to to account
    // - Owner's account must have sufficient balance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account
    //
    // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
    // recommends that there are no checks for the approval double-spend attack
    // as this should be implemented in user interfaces 
    // ------------------------------------------------------------------------
    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Transfer tokens from the from account to the to account
    // 
    // The calling account must already have sufficient tokens approve(...)-d
    // for spending from the from account and
    // - From account must have sufficient balance to transfer
    // - Spender must have sufficient allowance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(from, to, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Returns the amount of tokens approved by the owner that can be
    // transferred to the spender's account
    // ------------------------------------------------------------------------
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }

    // ------------------------------------------------------------------------
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account. The spender contract function
    // receiveApproval(...) is then executed
    // ------------------------------------------------------------------------
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }

    // ------------------------------------------------------------------------
    // Don't accept ETH
    // ------------------------------------------------------------------------
    function () public payable {
        revert();
    }

    // ------------------------------------------------------------------------
    // Owner can transfer out any accidentally sent ERC20 tokens
    // ------------------------------------------------------------------------
    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
        return ERC20Interface(tokenAddress).transfer(owner, tokens);
    }
}

may be due to cannot call directly transfer method ? or what? can someone explain me how can call contract method by laravel for this contract.

Hello, you should sign your transaction before sending it, refer to this link, there is an example: https://github.com/web3p/web3.php/issues/216

Here is a full example how to call a function on a smart contract which require a signer (to change the status of the blockchain). A simple call like balanceOf function doesn't require a signer so thats why it's working, but when you need to change content, you need to sign the transaction before like @jose5958 wrote before.

Assuming below:

$this->contract = new Contract($provider, $abi);
$this->ownerAccount = address of contract owner
$this->ownerPKey = private key of the contract owner used to sign the transaction

And also this code require the use of an other package from the same author : https://github.com/web3p/ethereum-tx It is used to send raw transaction with signer

public function transferMyGreatToken($recipientAccount, $quantity): mixed
    {
        Log::debug("Call {$quantity} transferMyGreatToken for recipient={$recipientAccount}");

        $transactionCount = null;
        $this->contract->eth->getTransactionCount($this->ownerAccount, function ($err, $transactionCountResult) use(&$transactionCount) {
            if($err) {
                Log::error('getTransactionCount error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $transactionCount = $transactionCountResult;
        });
        Log::debug("transactionCount=$transactionCount");

        $gasPrice = null;
        $this->contract->eth->gasPrice(function ($err, $gasPriceResult) use(&$gasPrice) {
            if($err) {
                Log::error('gasPrice error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $gasPrice = $gasPriceResult;
        });
        Log::debug("gasPrice=$gasPrice");

        $rawTransactionData = '0x' . $this->contract->getData('transferMyGreatToken', $recipientAccount, $quantity);

        $transactionParams = [
            'nonce' => "0x" . dechex($transactionCount->toString()),
            'from' => $this->ownerAccount,
            'to' =>  $this->contractAddress,
            'gasPrice' =>  '0x' . hexdec(dechex($gasPrice->toString())),
            'value' => '0x0',
            'data' => $rawTransactionData
        ];

        $estimatedGas = null;
        $this->contract->eth->estimateGas($transactionParams, function ($err, $gas) use (&$estimatedGas) {
            if ($err) {
                Log::error('estimateGas error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $estimatedGas = $gas;
        });
        Log::debug("estimatedGas=$estimatedGas");

        $gasPriceLimit = $this->computeGasLimit($estimatedGas);

        $transactionParams['gasLimit'] = '0x' . dechex($gasPriceLimit);
        $transactionParams['chainId'] = $this->chainId;

        $tp = json_encode($transactionParams);
        Log::debug("transactionParams=$tp");

        $tx = new Web3Transaction($transactionParams);
        $signedTx = '0x' . $tx->sign($this->ownerPKey);
        $txHash = null;
        $this->contract->eth->sendRawTransaction($signedTx, function ($err, $txResult) use (&$txHash) {
            if($err) {
                Log::error('transaction error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $txHash = $txResult;
        });
        Log::debug("txHash=$txHash");

        $txReceipt = null;
        Log::debug("Waiting for transaction receipt");
        for ($i=0; $i <= $this->secondsToWaitForReceipt; $i++) {
            $this->contract->eth->getTransactionReceipt($txHash, function ($err, $txReceiptResult) use(&$txReceipt) {
                if($err) {
                    Log::error('getTransactionReceipt error: ' . $err->getMessage());
                    throw new RuntimeException($err->getMessage());
                }
                $txReceipt = $txReceiptResult;
            });
            if ($txReceipt) {
                break;
            }
            sleep(1);
        }
        $txStatus = $txReceipt->status;
        Log::debug("txStatus=$txStatus");

        return $txStatus;
    }

$this->contract->getData is not function

what this ???????????????????????

@MariusMez

what is $this->chainId value?!

The chainId of the blockchain you are using...

// See: https://chainlist.org

  public const chainIds = [
      'mainnet' => 1,
      'ropsten' => 3,
      'rinkeby' => 4,
      'goerli' => 5,
      'kovan' => 42,
      'mumbai' => 80001,
      'polygon_testnet' => 80001,
      'polygon' => 137,
      'matic' => 137,
  ];

@MariusMez

Thanks for the reply

another question

‍‍ $this->computeGasLimit $this->secondsToWaitForReceipt

What does it calculate! I know what it is but I do not know how :)

If you have a sample code, thank you for sharing

Indeed, I didn't remove this optional part. In fact this method use an empiric way to define the maximum gas limit to use:

/**
   * Compute the maximum gasLimit value to use for a transaction
   * TODO: think of a better way to handle this 
   * @param $estimatedGas
   * @return int
   */
  public function computeGasLimit($estimatedGas): int
  {
      $maxGasLimit = (int) config('web3.max_gas_limit', 15000000);
      $factorToMultiplyGasEstimate = (int) config('web3.factor_to_multiply_gas_estimate');
      $gasPriceLimit = hexdec(dechex($estimatedGas->toString())) * $factorToMultiplyGasEstimate;
      if ($gasPriceLimit > $maxGasLimit) {
          $gasPriceLimit = $maxGasLimit;
      }
      Log::debug("gasPriceLimit=$gasPriceLimit");
      return $gasPriceLimit;
  }

And $this->secondsToWaitForReceipt is a timeout you have to set (20s/30s)

Assuming below:

$this->contract = new Contract($provider, $abi);
$this->ownerAccount = address of contract owner
$this->ownerPKey = private key of the contract owner used to sign the transaction

And also this code require the use of an other package from the same author : https://github.com/web3p/ethereum-tx It is used to send raw transaction with signer

public function transferMyGreatToken($recipientAccount, $quantity): mixed
    {
        Log::debug("Call {$quantity} transferMyGreatToken for recipient={$recipientAccount}");

        $transactionCount = null;
        $this->contract->eth->getTransactionCount($this->ownerAccount, function ($err, $transactionCountResult) use(&$transactionCount) {
            if($err) {
                Log::error('getTransactionCount error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $transactionCount = $transactionCountResult;
        });
        Log::debug("transactionCount=$transactionCount");

        $gasPrice = null;
        $this->contract->eth->gasPrice(function ($err, $gasPriceResult) use(&$gasPrice) {
            if($err) {
                Log::error('gasPrice error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $gasPrice = $gasPriceResult;
        });
        Log::debug("gasPrice=$gasPrice");

        $rawTransactionData = '0x' . $this->contract->getData('transferMyGreatToken', $recipientAccount, $quantity);

        $transactionParams = [
            'nonce' => "0x" . dechex($transactionCount->toString()),
            'from' => $this->ownerAccount,
            'to' =>  $this->contractAddress,
            'gasPrice' =>  '0x' . hexdec(dechex($gasPrice->toString())),
            'value' => '0x0',
            'data' => $rawTransactionData
        ];

        $estimatedGas = null;
        $this->contract->eth->estimateGas($transactionParams, function ($err, $gas) use (&$estimatedGas) {
            if ($err) {
                Log::error('estimateGas error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $estimatedGas = $gas;
        });
        Log::debug("estimatedGas=$estimatedGas");

        $gasPriceLimit = $this->computeGasLimit($estimatedGas);

        $transactionParams['gasLimit'] = '0x' . dechex($gasPriceLimit);
        $transactionParams['chainId'] = $this->chainId;

        $tp = json_encode($transactionParams);
        Log::debug("transactionParams=$tp");

        $tx = new Web3Transaction($transactionParams);
        $signedTx = '0x' . $tx->sign($this->ownerPKey);
        $txHash = null;
        $this->contract->eth->sendRawTransaction($signedTx, function ($err, $txResult) use (&$txHash) {
            if($err) {
                Log::error('transaction error: ' . $err->getMessage());
                throw new RuntimeException($err->getMessage());
            }
            $txHash = $txResult;
        });
        Log::debug("txHash=$txHash");

        $txReceipt = null;
        Log::debug("Waiting for transaction receipt");
        for ($i=0; $i <= $this->secondsToWaitForReceipt; $i++) {
            $this->contract->eth->getTransactionReceipt($txHash, function ($err, $txReceiptResult) use(&$txReceipt) {
                if($err) {
                    Log::error('getTransactionReceipt error: ' . $err->getMessage());
                    throw new RuntimeException($err->getMessage());
                }
                $txReceipt = $txReceiptResult;
            });
            if ($txReceipt) {
                break;
            }
            sleep(1);
        }
        $txStatus = $txReceipt->status;
        Log::debug("txStatus=$txStatus");

        return $txStatus;
    }

i m trying to understand this in plane php but i m stuck on this line $rawTransactionData = '0x' . $this->contract->getData('transferMyGreatToken', $recipientAccount, $quantity);

what is TransferMyGreateToken can i have this in base php please thanks for you help guidance you providing here

It's the name of the smart contract method you want to call. For example purpose I choose 'transferMyGreatToken', but of course you need to change it. (For a specific smart contract wich is not yours, you can find all methods/function names and event in the smart contract ABI)

It's the name of the smart contract method you want to call. For example purpose I choose 'transferMyGreatToken', but of course you need to change it. (For a specific smart contract wich is not yours, you can find all methods/function names and event in the smart contract ABI)

this is the code i m trying to run $rawTransactionData = '0x' . $my_contract->getData("transferFrom", $ownerAccount, $toAccount, $quantity);

here is smart contract method function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance")); return true; }

and here is abi $contract_abi = '[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"amount","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"TokenPrice","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_airdrop","type":"uint256"}],"name":"setDrop","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"sender","type":"address"},{"name":"recipient","type":"address"},{"name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"rate","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"airdrop","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"},{"name":"amount","type":"uint256"}],"name":"mint","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"amount","type":"uint256"}],"name":"burn","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"},{"name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"airdropTokens","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_rate","type":"uint256"}],"name":"setPrice","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"}],"name":"addMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"renounceMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"rewards","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"recipient","type":"address"},{"name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"isMinter","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_rewards","type":"uint256"}],"name":"setRewards","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"buyTokens","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_name","type":"string"},{"name":"_symbol","type":"string"},{"name":"_decimals","type":"uint8"},{"name":"_initialSupply","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"account","type":"address"}],"name":"MinterAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"account","type":"address"}],"name":"MinterRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]';

but i m getting error Fatal error: Uncaught InvalidArgumentException: Please make sure you have put all function params and callback. in /var/www/web3/vendor/sc0vu/web3.php/src/Contract.php:561 Stack trace: #0 /var/www/web3/sendtoken.php(96): Web3\Contract->send() #1 {main} thrown in /var/www/web3/vendor/sc0vu/web3.php/src/Contract.php on line 561

It's the name of the smart contract method you want to call. For example purpose I choose 'transferMyGreatToken', but of course you need to change it. (For a specific smart contract wich is not yours, you can find all methods/function names and event in the smart contract ABI)

this is the code i m trying to run $rawTransactionData = '0x' . $my_contract->getData("transferFrom", $ownerAccount, $toAccount, $quantity);

here is smart contract method function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance")); return true; }

and here is abi $contract_abi = '[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"amount","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"TokenPrice","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_airdrop","type":"uint256"}],"name":"setDrop","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"sender","type":"address"},{"name":"recipient","type":"address"},{"name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"rate","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"airdrop","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"},{"name":"amount","type":"uint256"}],"name":"mint","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"amount","type":"uint256"}],"name":"burn","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"},{"name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"airdropTokens","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_rate","type":"uint256"}],"name":"setPrice","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"account","type":"address"}],"name":"addMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"renounceMinter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"rewards","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"recipient","type":"address"},{"name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"isMinter","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_rewards","type":"uint256"}],"name":"setRewards","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"buyTokens","outputs":[{"name":"","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_name","type":"string"},{"name":"_symbol","type":"string"},{"name":"_decimals","type":"uint8"},{"name":"_initialSupply","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"account","type":"address"}],"name":"MinterAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"account","type":"address"}],"name":"MinterRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"}]';

but i m getting error Fatal error: Uncaught InvalidArgumentException: Please make sure you have put all function params and callback. in /var/www/web3/vendor/sc0vu/web3.php/src/Contract.php:561 Stack trace: #0 /var/www/web3/sendtoken.php(96): Web3\Contract->send() #1 {main} thrown in /var/www/web3/vendor/sc0vu/web3.php/src/Contract.php on line 561

any help guys please how can i send token using base php with this library

did you found a solution?

web3p / web3.php

execution reverted #251