Upgrade to PHP 8.1 (#4)

Author: akondas

.github/workflows/build.yaml

@@ -18,7 +18,7 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           coverage: "pcov"
-          php-version: "8.0"
+          php-version: "8.1"
           ini-values: memory_limit=-1
 
       - name: "Cache Composer dependencies"
@@ -27,8 +27,8 @@ jobs:
           path: |
             ~/.composer/cache
             vendor
-          key: "php-8.0"
-          restore-keys: "php-8.0"
+          key: "php-8.1"
+          restore-keys: "php-8.1"
 
       - name: "Validate composer"
         run: "composer validate"

CHANGELOG.md

@@ -4,7 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.0.0] - 2022-05-22
+- Upgrade to PHP 8
+- Add php-cs-fixer
+- Add phpstan by @akondas in #1
+- Configure GitHub Actions by @akondas in #3
 
 ## [0.1.0] - 2018-03-15
 ### Added
@@ -13,4 +17,3 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  - Storing and validate Blockchain
  - Proof of Work with difficulty (missing consensus on the difficulty)
  - Communicating with other nodes & controlling the node (based on ReactPHP)
-  

Dockerfile

@@ -0,0 +1,4 @@
+FROM php:8.1-cli-alpine
+RUN apk add --no-cache bash curl git
+RUN docker-php-ext-install pcntl
+COPY --from=composer:2.1.5 /usr/bin/composer /usr/bin/composer

Makefile

@@ -0,0 +1,7 @@
+build:
+	docker build -t php-blockchain .
+
+shell: build
+	docker run -it --rm --name php-blockchain-dev -v $(PWD):/var/app -w /var/app php-blockchain:latest /bin/bash
+
+.PHONY: build shell

README.md

@@ -1,7 +1,7 @@
 # Blockchain implementation in PHP
 
-[![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%207.2-8892BF.svg)](https://php.net/)
-[![Build Status](https://travis-ci.org/akondas/php-blockchain.svg?branch=master)](https://travis-ci.org/akondas/php-blockchain)
+[![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%208.1-8892BF.svg)](https://php.net/)
+[![Build](https://github.com/akondas/php-blockchain/actions/workflows/build.yaml/badge.svg)](https://github.com/akondas/php-blockchain/actions/workflows/build.yaml)
 [![License](https://poser.pugx.org/akondas/php-blockchain/license.svg)](https://packagist.org/packages/akondas/php-blockchain)
 
 Clean code approach to blockchain technology. Learn blockchain by reading source code.

composer.json

@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "react/http": "^0.8.1",
         "friendsofphp/php-cs-fixer": "^3.8"
     },

composer.lock

@@ -11,57 +11,15 @@ final class Block implements JsonSerializable
 {
     public const HASH_ALGORITHM = 'sha256';
 
-    /**
-     * @var int
-     */
-    private $index;
-
-    /**
-     * @var string
-     */
-    private $hash;
-
-    /**
-     * @var string
-     */
-    private $previousHash;
-
-    /**
-     * @var \DateTimeImmutable
-     */
-    private $createdAt;
-
-    /**
-     * @var string
-     */
-    private $data;
-
-    /**
-     * @var int
-     */
-    private $difficulty;
-
-    /**
-     * @var int
-     */
-    private $nonce;
-
     public function __construct(
-        int $index,
-        string $hash,
-        string $previousHash,
-        DateTimeImmutable $createdAt,
-        string $data,
-        int $difficulty,
-        int $nonce
+        private int $index,
+        private string $hash,
+        private string $previousHash,
+        private DateTimeImmutable $createdAt,
+        private string $data,
+        private int $difficulty,
+        private int $nonce
     ) {
-        $this->index = $index;
-        $this->hash = $hash;
-        $this->previousHash = $previousHash;
-        $this->createdAt = $createdAt;
-        $this->data = $data;
-        $this->difficulty = $difficulty;
-        $this->nonce = $nonce;
     }
 
     public static function genesis(): self
@@ -134,7 +92,7 @@ public static function calculateHash(
     }
 
     /**
-     * @return mixed[]
+     * @return array<string,string|int>
      */
     public function jsonSerialize(): array
     {

src/Block.php

@@ -54,7 +54,7 @@ public function withLastBlockOnly(): self
     }
 
     /**
-     * @return Block[]
+     * @return non-empty-array<Block>
      */
     public function blocks(): array
     {

src/Blockchain.php

@@ -9,20 +9,8 @@
 
 final class Miner
 {
-    /**
-     * @var Blockchain
-     */
-    private $blockchain;
-
-    /**
-     * @var HashDifficulty
-     */
-    private $hashDifficulty;
-
-    public function __construct(Blockchain $blockchain, HashDifficulty $hashDifficulty)
+    public function __construct(private Blockchain $blockchain, private HashDifficulty $hashDifficulty)
     {
-        $this->blockchain = $blockchain;
-        $this->hashDifficulty = $hashDifficulty;
     }
 
     public function mineBlock(string $data): Block

src/Miner.php

@@ -17,7 +17,7 @@ public function hashMatchesDifficulty(string $hash, int $difficulty): bool
         $binary = $this->binaryString($hash, $difficulty);
         $prefix = \str_repeat('0', $difficulty);
 
-        return \strpos($binary, $prefix) === 0;
+        return \str_starts_with($binary, $prefix);
     }
 
     private function binaryString(string $hash, int $difficulty): string

src/Miner/HashDifficulty/ZeroPrefix.php

@@ -10,20 +10,8 @@
 
 final class Node
 {
-    /**
-     * @var Miner
-     */
-    private $miner;
-
-    /**
-     * @var P2pServer
-     */
-    private $p2pServer;
-
-    public function __construct(Miner $miner, P2pServer $p2pServer)
+    public function __construct(private Miner $miner, private P2pServer $p2pServer)
     {
-        $this->miner = $miner;
-        $this->p2pServer = $p2pServer;
     }
 
     /**

src/Node.php

@@ -12,20 +12,10 @@ final class Message
 
     public const BLOCKCHAIN = 'blockchain';
 
-    /**
-     * @var string
-     */
-    private $type;
-
-    /**
-     * @var ?string
-     */
-    private $data;
-
-    public function __construct(string $type, ?string $data = null)
-    {
-        $this->type = $type;
-        $this->data = $data;
+    public function __construct(
+        private string $type,
+        private ?string $data = null
+    ) {
     }
 
     public function type(): string

src/Node/Message.php

@@ -29,7 +29,7 @@ public function port(): int
     }
 
     /**
-     * @return mixed[]
+     * @return array<string,string|int>
      */
     public function jsonSerialize(): array
     {

src/Node/Peer.php

@@ -10,14 +10,8 @@
 
 final class WebServer
 {
-    /**
-     * @var Node
-     */
-    private $node;
-
-    public function __construct(Node $node)
+    public function __construct(private Node $node)
     {
-        $this->node = $node;
     }
 
     public function __invoke(ServerRequestInterface $request): Response

src/WebServer.php

@@ -9,10 +9,7 @@
 
 final class JsonResponse extends HttpResponse implements Response
 {
-    /**
-     * @param mixed $data
-     */
-    public function __construct($data)
+    public function __construct(mixed $data)
     {
         parent::__construct(200, ['Content-Type' => 'application/json'], \json_encode($data));
     }