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muxed_account_payment.md

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Use muxed account for payment

In this example we will see how to use a muxed account in a payment.

Muxed accounts can furthermore be used in:

  • payment operation destination
  • payment strict receive operation destination
  • payment strict send operation destination
  • any operation source account
  • account merge operation destination
  • transaction source account
  • fee bump transaction fee source
// Create two random key pairs, we will need them later for signing.
$senderKeyPair = KeyPair::random();
$receiverKeyPair = KeyPair::random();

// AccountIds
$accountCId = $receiverKeyPair->getAccountId();
$senderAccountId = $senderKeyPair->getAccountId();

// Create the sender account.
FriendBot::fundTestAccount($senderAccountId);

// Load the current account data of the sender account.
$accountA = $sdk->requestAccount($senderAccountId);

// Create the receiver account.
$transaction = (new TransactionBuilder($accountA))
    ->addOperation((new CreateAccountOperationBuilder($accountCId, "10"))->build())
    ->build();

// Sign.
$transaction->sign($senderKeyPair, Network::testnet());

// Submit.
$sdk->submitTransaction($transaction);

// Now let's create the mxued accounts to be used in the payment transaction.
$muxedDestinationAccount = new MuxedAccount($accountCId, 8298298319);
$muxedSourceAccount = new MuxedAccount($senderAccountId, 2442424242);

// Build the payment operation.
// We use the muxed account objects for destination and for source here.
// This is not needed, you can also use only a muxed source account or muxed destination account.
$paymentOperation = PaymentOperationBuilder::forMuxedDestinationAccount($muxedDestinationAccount, Asset::native(), "100")
    ->setMuxedSourceAccount($muxedSourceAccount)->build();

// Build the transaction.
// If we want to use a Med25519 muxed account with id as a source of the transaction, we can just set the id in our account object.
$accountA->setMuxedAccountMed25519Id(44498494844);
$transaction = (new TransactionBuilder($accountA))->addOperation($paymentOperation)->build();

// Sign.
$transaction->sign($senderKeyPair, Network::testnet());

// Submit.
$response = $sdk->submitTransaction($transaction);

// Have a look to the transaction and the contents of the envelope in Stellar Laboratory
// https://laboratory.stellar.org/#explorer?resource=transactions&endpoint=single&network=test
print($response->getHash());