<?php
use BitWasp\Bitcoin\Bitcoin;
use BitWasp\Bitcoin\Address;
use BitWasp\Bitcoin\Key\Deterministic\HierarchicalKeyFactory;
require __DIR__ . "/../vendor/autoload.php";
$math = Bitcoin::getMath();
$network = Bitcoin::getNetwork();
$master = HierarchicalKeyFactory::generateMasterKey();
echo "Master key (m)\n";
echo " " . $master->toExtendedPrivateKey($network) . "\n";
echo " Address: " . $master->getPublicKey()->getAddress()->getAddress() . "\n\n";
echo "Derive sequential keys:\n";
$key1 = $master->deriveChild(0);
echo " - m/0' " . $key1->toExtendedPrivateKey($network) . "\n";
echo " Address: " . $key1->getPublicKey()->getAddress()->getAddress() . "\n\n";
$key2 = $key1->deriveChild(999999);
echo " - m/0'/999999 " . $key2->toExtendedPublicKey($network) . "\n";
echo " Address: " . $key2->getPublicKey()->getAddress()->getAddress() . "\n\n";
echo "Directly derive path\n";
$sameKey2 = $master->derivePath("0'/999999");
echo " - m/0'/999999 " . $sameKey2->toExtendedPublicKey() . "\n";
echo " Address: " . $sameKey2->getPublicKey()->getAddress()->getAddress() . "\n\n";
