<?php

require_once __DIR__ . "/../vendor/autoload.php";
use BitWasp\Bitcoin\Bitcoin;
use BitWasp\Bitcoin\Transaction\TransactionFactory;
use BitWasp\Bitcoin\Address\AddressFactory;
use BitWasp\Bitcoin\Key\PrivateKeyFactory;
Bitcoin::setNetwork(\BitWasp\Bitcoin\Network\NetworkFactory::bitcoinTestnet());
$network = Bitcoin::getNetwork();
$ecAdapter = Bitcoin::getEcAdapter();
$privateKey = PrivateKeyFactory::fromHex('17a2209250b59f07a25b560aa09cb395a183eb260797c0396b82904f918518d5');
echo "[Key: " . $privateKey->toWif($network) . " Address " . $privateKey->getAddress()->getAddress($network) . "]\n";
$txHex = '010000000114a2856f5a2992a4ca0814be16a0ae79e2f88a6f53a20fcbcad5249165f56ee7010000006a47304402201e733603ac36239010e05ad229b4a18411d5507950f696db0771a5b7fe8e051202203c46da7e970e89cbbdfb4ee62fa775597a32e5029ab1d2a94f786999df2c2fd201210271127f11b833239aefd400b11d576e7cc48c6969c8e5f8e30b0f5ec0a514edf7feffffff02801a0600000000001976a914c4126d1b70f5667e492e3301c3aa8bf1031e21a888ac75a29d1d000000001976a9141ef8d6913c289890a5e9ec249fedde4440877d0288ac88540500';
$myTx = TransactionFactory::fromHex($txHex);
$spendOutput = 0;
$recipient = AddressFactory::fromString('n1b2a9rFvuU9wBgBaoWngNvvMxRV94ke3x');
echo "[Send to: " . $recipient->getAddress($network) . " \n";
echo "Generate a transaction spending the one above \n";
$spendTx = TransactionFactory::build()->spendOutputFrom($myTx, $spendOutput)->payToAddress(40000, $recipient)->get();
echo "Sign transaction\n";
$signer = TransactionFactory::sign($spendTx);
$signer->sign(0, $privateKey, $myTx->getOutput($spendOutput)->getScript());
echo "Generate transaction: \n";
$new = $signer->get();
echo $new->getHex() . "\n";
<?php

require "../vendor/autoload.php";
use BitWasp\Buffertools\Buffer;
use BitWasp\Bitcoin\Crypto\Hash;
use BitWasp\Bitcoin\Key\PrivateKeyFactory;
use BitWasp\Bitcoin\Transaction\TransactionFactory;
use BitWasp\Bitcoin\Script\ScriptFactory;
$ent = Hash::sha256(new Buffer('abc'));
$priv = PrivateKeyFactory::fromHex($ent);
$publicKey = $priv->getPublicKey();
$outputScript = ScriptFactory::scriptPubKey()->payToPubKeyHash($publicKey);
$tx = TransactionFactory::build()->input('10001234abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234', 0)->payToAddress(50, $publicKey->getAddress())->get();
$signed = TransactionFactory::sign($tx)->sign(0, $priv, $outputScript)->get();
echo $signed->getHex();
$consensus = ScriptFactory::consensus();
$validator = $signed->validator();
var_dump($validator->checkSignatures($consensus, [$outputScript]));