armanist · Jan 4, 2026 · Dec 27, 2025 · Dec 27, 2025 · Dec 27, 2025 · Dec 27, 2025
diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ ubuntu-latest ]
-        php-versions: [ '7.3', '7.4' ]
+        php-versions: [ '7.4', '8.0', '8.1' ]
         redis-version: [ 6 ]
 
     runs-on: ${{ matrix.operating-system }}
@@ -37,7 +37,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-versions }}
           extensions: redis, memcached
-          ini-values:  phar.readonly=0
+          ini-values:  phar.readonly=0, error_reporting=E_ALL
 
       - name: Validate composer.json and composer.lock
         run: composer validate --strict
@@ -55,7 +55,7 @@ jobs:
         run: composer install --prefer-dist --no-progress
 
       - name: Run tests
-        run: composer test
+        run: composer test -- --fail-on-warning --fail-on-risky
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3

diff --git a/.travis.yml b/.travis.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -0,0 +1,44 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [3.0.0] - TBD
+
+### Changed
+- **BREAKING:** Minimum PHP version requirement raised from 7.3 to 7.4
+- Modernized codebase with PHP 7.4+ syntax using Rector:
+  - Array destructuring: `list()` → `[]`
+  - Arrow functions for simple closures
+  - Null coalescing assignment operator (`??=`)
+  - Class constant references using `::class`
+  - Secure random number generation with `random_int()`
+  - Modern `setcookie()` array syntax
+- Updated CI pipeline to test against PHP 7.4, 8.0, and 8.1
+- CI now fails on PHP warnings and deprecations for stricter quality control
+- Added `declare(strict_types=1)` to all Exception classes for improved type safety
+
+### Fixed
+- PHP 8.1 compatibility: Fixed null parameter deprecations in `explode()`, `parse_url()`, and `str_replace()`
+- PHP 8.4 forward compatibility: Fixed implicitly nullable parameters in database and auth adapters
+- PHP 8.4 forward compatibility: Added missing type hint to `SleekDbal::__get()` magic method
+- Fixed deprecated `E_STRICT` constant usage in test bootstrap
+- Fixed cURL error message assertions for cross-version compatibility
+
+### Added
+- Rector as dev dependency for automated code refactoring
+- Additional PHP extensions required in CI: `bcmath`, `gd`, `zip`
+- PHPUnit strict testing flags: `--fail-on-warning`, `--fail-on-risky`
+
+### Removed
+- Support for PHP 7.3 and earlier versions
+
+---
+
+## [2.x.x] - Previous versions
+
+See Git history for changes in earlier versions.
diff --git a/composer.json b/composer.json
@@ -1,7 +1,11 @@
 {
     "name": "quantum/framework",
     "description": "The Quantum PHP Framework",
-    "keywords": ["framework", "php", "quantum"],
+    "keywords": [
+        "framework",
+        "php",
+        "quantum"
+    ],
     "license": "MIT",
     "homepage": "https://quantumphp.io",
     "support": {
@@ -15,7 +19,7 @@
         }
     ],
     "require": {
-        "php": ">=7.3",
+        "php": "^7.4 || ^8.0",
         "ext-pdo": "*",
         "ext-curl": "*",
         "ext-json": "*",
@@ -51,7 +55,8 @@
     "require-dev": {
         "phpunit/phpunit": "^9.0",
         "mockery/mockery": "^1.4",
-        "mikey179/vfsstream": "^1.6"
+        "mikey179/vfsstream": "^1.6",
+        "rector/rector": "^2.3"
     },
     "suggest": {
         "ext-dom": "Required for XML/HTML processing",
@@ -74,4 +79,4 @@
     },
     "minimum-stability": "dev",
     "prefer-stable": true
-}
+}
diff --git a/phpunit.xml b/phpunit.xml
@@ -7,7 +7,12 @@
         verbose="true"
         stderr="true"
         stopOnFailure="false"
+        convertDeprecationsToExceptions="false"
 >
+    <php>
+        <ini name="error_reporting" value="E_ALL &amp; ~E_DEPRECATED"/>
+    </php>
+
     <testsuites>
         <testsuite name="Quantum PHP Framework Test Suite">
             <directory>./tests/Unit</directory>

diff --git a/rector.php b/rector.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\LevelSetList;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__ . '/src',
+        __DIR__ . '/tests',
+    ])
+    ->withSets([
+        LevelSetList::UP_TO_PHP_80,
+    ]);
diff --git a/src/App/Adapters/ConsoleAppAdapter.php b/src/App/Adapters/ConsoleAppAdapter.php
@@ -26,7 +26,9 @@
 use Quantum\Di\Exceptions\DiException;
 use ReflectionException;
 
-if (!defined('DS')) define('DS', DIRECTORY_SEPARATOR);
+if (!defined('DS')) {
+    define('DS', DIRECTORY_SEPARATOR);
+}
 
 /**
  * Class ConsoleAppAdapter

diff --git a/src/App/Adapters/WebAppAdapter.php b/src/App/Adapters/WebAppAdapter.php
@@ -113,7 +113,7 @@ public function start(): ?int
             info(HookManager::getInstance()->getRegistered(), ['tab' => Debugger::HOOKS]);
 
             if (current_middlewares()) {
-                list($this->request, $this->response) = (new MiddlewareManager())->applyMiddlewares($this->request, $this->response);
+                [$this->request, $this->response] = (new MiddlewareManager())->applyMiddlewares($this->request, $this->response);
             }
 
             $viewCache = $this->setupViewCache();

diff --git a/src/App/Exceptions/AppException.php b/src/App/Exceptions/AppException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * Quantum PHP Framework
  *

diff --git a/src/App/Exceptions/BaseException.php b/src/App/Exceptions/BaseException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * Quantum PHP Framework
  *

diff --git a/src/App/Exceptions/StopExecutionException.php b/src/App/Exceptions/StopExecutionException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * Quantum PHP Framework
  *

diff --git a/src/App/Helpers/app.php b/src/App/Helpers/app.php
@@ -23,7 +23,7 @@
  */
 function stop(?Closure $closure = null, ?int $code = 0)
 {
-    if ($closure) {
+    if ($closure instanceof \Closure) {
         $closure();
     }
 

diff --git a/src/App/Helpers/dir.php b/src/App/Helpers/dir.php
@@ -98,7 +98,7 @@ function deleteDirectoryWithFiles(string $dir): bool
         return false;
     }
 
-    $files = array_diff(scandir($dir), array('.', '..'));
+    $files = array_diff(scandir($dir), ['.', '..']);
 
     foreach ($files as $file) {
         $path = $dir . DS . $file;

diff --git a/src/App/Helpers/misc.php b/src/App/Helpers/misc.php
@@ -57,7 +57,7 @@ function random_number(int $length = 10): int
 {
     $randomString = '';
     for ($i = 0; $i < $length; $i++) {
-        $randomString .= rand(0, 9);
+        $randomString .= random_int(0, 9);
     }
     return (int)$randomString;
 }
@@ -75,7 +75,7 @@ function slugify(string $text): string
     $text = trim($text, '-');
     $text = mb_strtolower($text);
 
-    if (empty($text)) {
+    if ($text === '' || $text === '0') {
         return 'n-a';
     }
 

diff --git a/src/Config/Exceptions/ConfigException.php b/src/Config/Exceptions/ConfigException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * Quantum PHP Framework
  *

diff --git a/src/Console/Commands/DebugBarCommand.php b/src/Console/Commands/DebugBarCommand.php
@@ -98,15 +98,13 @@ private function copyResources(string $src, string $dst)
     {
         $dir = opendir($src);
 
-        if ($dst != $this->publicDebugBarFolderPath) {
-            if ($this->fs->makeDirectory($dst) === false) {
-                throw FileSystemException::directoryNotWritable($dst);
-            }
+        if ($dst != $this->publicDebugBarFolderPath && $this->fs->makeDirectory($dst) === false) {
+            throw FileSystemException::directoryNotWritable($dst);
         }
 
         if (is_resource($dir)) {
             while (($file = readdir($dir))) {
-                if (($file != '.') && ($file != '..')) {
+                if (($file !== '.') && ($file !== '..')) {
                     if ($this->fs->isDirectory($src . DS . $file)) {
                         $this->copyResources($src . DS . $file, $dst . DS . $file);
                     } else {

diff --git a/src/Console/Commands/EnvCommand.php b/src/Console/Commands/EnvCommand.php
@@ -70,11 +70,9 @@ public function exec()
             $this->error('.env.example file not found');
         }
 
-        if ($fs->exists('.env') && !$this->getOption('yes')) {
-            if (!$this->confirm("The operation will overwrite values of the existing .env and will create new one from .env.example. Continue?")) {
-                $this->info('Operation was canceled!');
-                return;
-            }
+        if ($fs->exists('.env') && !$this->getOption('yes') && !$this->confirm("The operation will overwrite values of the existing .env and will create new one from .env.example. Continue?")) {
+            $this->info('Operation was canceled!');
+            return;
         }
 
         $fs->copy(

diff --git a/src/Console/Commands/KeyGenerateCommand.php b/src/Console/Commands/KeyGenerateCommand.php
@@ -60,12 +60,10 @@ class KeyGenerateCommand extends QtCommand
      */
     public function exec()
     {
-        if (Environment::getInstance()->hasKey('APP_KEY') && env('APP_KEY') !== "") {
-            if (!$this->getOption('yes')) {
-                if (!$this->confirm("The operation will remove the existing key and will create new one. Continue?")) {
-                    $this->info('Operation was canceled!');
-                    return;
-                }
+        if (Environment::getInstance()->hasKey('APP_KEY') && env('APP_KEY') !== "" && !$this->getOption('yes')) {
+            if (!$this->confirm("The operation will remove the existing key and will create new one. Continue?")) {
+                $this->info('Operation was canceled!');
+                return;
             }
         }
 

diff --git a/src/Console/Commands/MigrationMigrateCommand.php b/src/Console/Commands/MigrationMigrateCommand.php
@@ -71,11 +71,9 @@ public function exec()
 
         $direction = $this->getArgument('direction') ?: MigrationManager::UPGRADE;
 
-        if ($direction == 'down') {
-            if (!$this->confirm("This operation will revert all the database changes, including the data. Continue?")) {
-                $this->info('Operation was canceled!');
-                return;
-            }
+        if ($direction == 'down' && !$this->confirm("This operation will revert all the database changes, including the data. Continue?")) {
+            $this->info('Operation was canceled!');
+            return;
         }
 
         $step = (int)$this->getOption('step') ?: null;

diff --git a/src/Console/Commands/OpenApiCommand.php b/src/Console/Commands/OpenApiCommand.php
@@ -148,7 +148,7 @@ private function copyResources()
 
         if (is_resource($dir)) {
             while (($file = readdir($dir))) {
-                if (($file != '.') && ($file != '..') && !in_array($file, $this->excludeFileNames)) {
+                if (($file !== '.') && ($file !== '..') && !in_array($file, $this->excludeFileNames)) {
                     copy($this->vendorOpenApiFolderPath . DS . $file, $this->publicOpenApiFolderPath . DS . $file);
                 }
             }

diff --git a/src/Console/Commands/ResourceCacheClearCommand.php b/src/Console/Commands/ResourceCacheClearCommand.php
@@ -162,7 +162,7 @@ private function importConfig(): void
 	 */
 	private function initModule(?string $moduleOption): void
 	{
-		if (!empty($moduleOption)) {
+		if (!in_array($moduleOption, [null, '', '0'], true)) {
 			$this->importModules();
 			$module = strtolower($moduleOption);
 
@@ -181,7 +181,7 @@ private function initModule(?string $moduleOption): void
 	 */
 	private function initType(?string $typeOption): void
 	{
-		if (!empty($typeOption)) {
+		if (!in_array($typeOption, [null, '', '0'], true)) {
 			$type = strtolower($typeOption);
 
 			if (in_array($type, $this->types)) {

diff --git a/src/Console/Commands/RouteListCommand.php b/src/Console/Commands/RouteListCommand.php
@@ -62,11 +62,9 @@ public function exec()
             $module = $this->getOption('module');
 
             if ($module) {
-                $routes = array_filter($routes, function ($route) use ($module) {
-                    return strtolower($route['module']) === strtolower($module);
-                });
+                $routes = array_filter($routes, fn($route) => strtolower($route['module']) === strtolower($module));
 
-                if (empty($routes)) {
+                if ($routes === []) {
                     $this->error('The module is not found');
                     return;
                 }

diff --git a/src/Console/Commands/ServeCommand.php b/src/Console/Commands/ServeCommand.php
@@ -87,14 +87,12 @@ public function exec()
         if (!$this->portAvailable()) {
             $this->portOffset += 1;
             $this->exec();
+        } elseif (!$this->openBrowserCommand()) {
+            $this->info('Starting development server at: ' . $this->host() . ':' . $this->port());
+            exec($this->runServerCommand(), $out);
         } else {
-            if (!$this->openBrowserCommand()) {
-                $this->info('Starting development server at: ' . $this->host() . ':' . $this->port());
-                exec($this->runServerCommand(), $out);
-            } else {
-                $this->info('Starting development server at: ' . $this->host() . ':' . $this->port());
-                exec($this->openBrowserCommand() . ' && ' . $this->runServerCommand(), $out);
-            }
+            $this->info('Starting development server at: ' . $this->host() . ':' . $this->port());
+            exec($this->openBrowserCommand() . ' && ' . $this->runServerCommand(), $out);
         }
     }