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<?php
declare(strict_types=1);
namespace BitWasp\Bitcoin\Transaction\PSBT;
use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PublicKeyInterface;
use BitWasp\Bitcoin\Script\ScriptInterface;
use BitWasp\Bitcoin\Transaction\TransactionInterface;
use BitWasp\Bitcoin\Transaction\TransactionOutputInterface;
class UpdatableInput
{
private $psbt;
private $nIn;
private $input;
public function __construct(
PSBT $psbt,
int $nIn,
PSBTInput $input
) {
$this->psbt = $psbt;
$this->nIn = $nIn;
$this->input = $input;
}
public function input(): PSBTInput
return $this->input;
public function addNonWitnessTx(TransactionInterface $tx)
$outPoint = $this->psbt->getTransaction()->getInputs()[$this->nIn]->getOutPoint();
if (!$outPoint->getTxId()->equals($tx->getTxId())) {
throw new \RuntimeException("Non-witness txid differs from unsigned tx input {$this->nIn}");
if ($outPoint->getVout() > count($tx->getOutputs()) - 1) {
throw new \RuntimeException("unsigned tx outpoint does not exist in this transaction");
$this->input = $this->input->withNonWitnessTx($tx);
public function addWitnessTxOut(TransactionOutputInterface $txOut)
$this->input = $this->input->withWitnessTxOut($txOut);
public function addRedeemScript(ScriptInterface $script)
$this->input = $this->input->withRedeemScript($script);
public function addWitnessScript(ScriptInterface $script)
$this->input = $this->input->withWitnessScript($script);
public function addDerivation(PublicKeyInterface $key, PSBTBip32Derivation $derivation)
$this->input = $this->input->withDerivation($key, $derivation);
Bit-Wasp /
bitcoin-php
