$line = trim(fgets(STDIN));
    $decode_redeem_script = RawTransaction::decode_redeem_script($line);
    if ($decode_redeem_script == FALSE) {
        echo "[ERROR]- Not a valid script!\n";
        unset($decode_redeem_script);
    } else {
        $redeem_script = $line;
        echo "Learned about {$decode_redeem_script['m']} of {$decode_redeem_script['n']} address: " . BitcoinLib::public_key_to_address($redeem_script, '05') . "\n";
    }
}
echo "Enter WIF encoded private keys: \n (1): ";
$private_keys = array();
while ("\n" != ($line = fgets(STDIN))) {
    $line = trim($line);
    $t = BitcoinLib::validate_WIF($line, '80');
    var_dump($t);
    if (BitcoinLib::validate_WIF($line, '80') == TRUE) {
        $private_keys[] = $line;
    } else {
        echo "Not a valid private key.\n";
    }
    echo " (" . (count($private_keys) + 1) . "): ";
}
// Initialize wallet
$wallet = array();
RawTransaction::private_keys_to_wallet($wallet, $private_keys, '00');
RawTransaction::redeem_scripts_to_wallet($wallet, array($redeem_script), '05');
$raw_transaction = '01000000018240b84b90a3ae326e13219dc8a2781661fa28e23129b26fea848dd8e01a0c520000000000ffffffff02d8270000000000001976a914b7119dfb9b5c8aa7157fec48fbe640ea347dc92b88ac584d0000000000001976a914592fb6dc8cf6cd561ec86fd5fbc2a140e5ac7bc988ac00000000';
$json = '[{"txid":"520c1ae0d88d84ea6fb22931e228fa611678a2c89d21136e32aea3904bb84082","vout":0,"scriptPubKey":"a914fb56f0d4845487cc9da00c3e91e63503245f151787","redeemScript":"52210385fae44cb9f0cf858e0d404baecf78d026fae4cc9dd4343b8562059473c2af7b2102f34a1b64155db258d3a910625bd80fae6adf67d7e5b5f3de03265a4208b552d841040fa9a86f3237237423dd8331dc481c0a949fe11594c5dfa0b54bdc105daa319f9de6547d97c22296d4211073e7cffa71c8d6cd4da639607ca64fca2705e562a353ae"}]';
$sign = RawTransaction::sign($wallet, $raw_transaction, $json);
print_r($sign);
 public function testPrivateKeyValidation()
 {
     $cnt = (getenv('BITCOINLIB_EXTENSIVE_TESTING') ?: 1) * 5;
     $val = FALSE;
     for ($i = 0; $i < $cnt; $i++) {
         $key = BitcoinLib::get_new_key_set($this->addressVersion, $val);
         $val = $val == FALSE ? TRUE : FALSE;
         $this->assertTrue(BitcoinLib::validate_WIF($key['privWIF'], $this->WIFVersion));
     }
 }