Wallet Import Format (WIF) in PHP - Private to Wif

private_to_wif.php

<?php
declare(strict_types=1);

require "../vendor/autoload.php";
echo "<pre>";
$base58 = new \FurqanSiddiqui\Base58\Base58();

$base16 = new \Comely\DataTypes\Buffer\Base16();
$privateKey = $base16->set("0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D");

echo "<h3>Private Key</h3>";
var_dump($privateKey->value());

echo "<h3>Extended Key</h3>";
$mainPrefix = "0x80";
$extendedKey = $mainPrefix . $privateKey->value();
$extendedKey = substr($extendedKey, 2);
var_dump($extendedKey);
// 800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D

echo "<h3>SHA1</h3>";
$sha1 = hash("sha256", hex2bin($extendedKey));
var_dump($sha1);
// 8147786c4d15106333bf278d71dadaf1079ef2d2440a4dde37d747ded5403592

echo "<h3>SHA2</h3>";
$sha2 = hash("sha256", hex2bin($sha1));
var_dump($sha2);
// 507a5b8dfed0fc6fe8801743720cedec06aa5c6fca72b07c49964492fb98a714

echo "<h3>Takes First 4 Bytes (First 8 characters)</h3>";
$finalSha = strtoupper(substr($sha2, 0, 8));
var_dump($finalSha);
// 507A5B8D

echo "<h3>Final Extended Key</h3>";
$finalExtended = $extendedKey . $finalSha;
var_dump($finalExtended);
// 800C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D507A5B8D

echo "<h3>Base58 Encoding</h3>";
$base58_encode = $base58::Encode(\Comely\DataTypes\BcNumber::fromBase16($base16->set($finalExtended)));
var_dump($base58_encode->value());
// 5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ