PHP Blockchain

A simple implementation of a blockchain using the PHP programming language. It still has far to go and contributions are welcomed.

Installation

composer require davidngugi/php-blockchain

Run Tests

php vendor/phpunit/phpunit/phpunit

Run Fake Transactions

The PHPBlockchain\TestBlockchain::class has a basic working implementation of this blockchain. It shows how you can add transactions to the blockchain.

Run it from the terminal:

php src/TestBlockchain.php

Example,

$blockchain = new TestBlockchain;
$blockchain->addNewTransaction('David', 'Dan', 200);
$blockchain->addNewTransaction('Dan', 'David', 100);
$blockchain->display();

Batch transactions

$transactions = [
    ['David', 'Dan', 200],
    ['Dan', 'David', 100],
    ['Cynthia', 'David', 50],
    ['Martin', 'David', 100]
];

$blockchain->addManyTransactions($transactions);
$blockchain->display();

To-Do

• Add more Tests for the Blockchain
• Improve the Proof-of-Work (PoW) algorithm or evaluate whether to switch to a Proof-of-Stake (PoS) is worth it
• Add Address class
• Design changes
• Clean up for publishing to packagist

Contribution

All contributions (big or small) are highly welcomed.

1. Fork the project
2. Open an issue on this repo
3. Work out a solution on your fork and ensure all tests run successfully
4. Send a PR associated with the issue you opened
5. PR will be evaluated and if approved, merged into the project and the issue closed

It's as simple as that! :)

Authors

• David Ngugi [email protected]

Support

If you would love to support the continuous development and maintenance of this package, please consider buying me a coffee.

License

This package is open-sourced software licensed under the MIT Licence