Drop support for PHP version less than 7.4 (#227)

* Add typehints to properties
* Add return types to methods
* Drop support for PHP versions below 7.4

.github/workflows/tests.yml

@@ -6,7 +6,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ["7.2", "7.3", "7.4", "8.0", "8.1", "8.2"]
+        php-versions: ["7.4", "8.0", "8.1", "8.2"]
         dependency-versions: ["highest", "lowest"]
     runs-on: ${{ matrix.operating-system }}
     steps:

composer.json

@@ -20,7 +20,7 @@
         }
     ],
     "require": {
-        "php": "^7.2|^8.0",
+        "php": "^7.4|^8.0",
         "psr/log": "^1.0|^2.0|^3.0",
         "firebase/php-jwt": "^3.0|^4.0|^5.0",
         "psr/http-message": "^1.0",

src/JwtAuthentication.php

@@ -47,7 +47,6 @@
 use Psr\Log\LogLevel;
 use RuntimeException;
 use SplStack;
-use Tuupola\Middleware\DoublePassTrait;
 use Tuupola\Http\Factory\ResponseFactory;
 use Tuupola\Middleware\JwtAuthentication\RequestMethodRule;
 use Tuupola\Middleware\JwtAuthentication\RequestPathRule;
@@ -61,19 +60,13 @@ final class JwtAuthentication implements MiddlewareInterface
      * PSR-3 compliant logger.
      * @var LoggerInterface|null
      */
-    private $logger;
-
-    /**
-     * Last error message.
-     * @var string
-     */
-    private $message;
+    private ?LoggerInterface $logger = null;
 
     /**
      * The rules stack.
      * @var SplStack<RuleInterface>
      */
-    private $rules;
+    private SplStack $rules;
 
     /**
      * Stores all the options passed to the middleware.
@@ -94,7 +87,7 @@ final class JwtAuthentication implements MiddlewareInterface
      *   error: null|callable,
      * }
      */
-    private $options = [
+    private array $options = [
         "secure" => true,
         "relaxed" => ["localhost", "127.0.0.1"],
         "algorithm" => ["HS256", "HS512", "HS384"],

src/JwtAuthentication/RequestMethodRule.php

@@ -49,7 +49,7 @@ final class RequestMethodRule implements RuleInterface
      *   ignore: array<string>,
      * }
      */
-    private $options = [
+    private array $options = [
         "ignore" => ["OPTIONS"]
     ];
 

src/JwtAuthentication/RequestPathRule.php

@@ -50,7 +50,7 @@ final class RequestPathRule implements RuleInterface
      *   ignore: array<string>,
      * }
      */
-    private $options = [
+    private array $options = [
         "path" => ["/"],
         "ignore" => []
     ];

tests/ArrayAccessImpl.php

@@ -34,7 +34,7 @@
 
 class ArrayAccessImpl implements \ArrayAccess
 {
-    private $array = [];
+    private array $array = [];
 
     public function offsetExists($offset)
     {