Include PHP 8.4 test coverage

.github/workflows/php-package.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: ['ubuntu-latest']
-        php-versions: [7.3, 7.4, 8.0, 8.1, 8.2, 8.3]
+        php-versions: [7.3, 7.4, 8.0, 8.1, 8.2, 8.3, 8.4]
     steps:
       - name: Setup PHP, with composer and extensions
         uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php
@@ -46,9 +46,9 @@ jobs:
           php vendor/bin/phploc src/.
           mkdir -p tests/build/dependences
           php vendor/bin/pdepend --summary-xml=tests/build/logs/dependence-summary.xml --jdepend-chart=tests/build/dependences/jdepend.svg --overview-pyramid=tests/build/dependences/pyramid.svg  src/.
- 
+
       - name: PHP Code Sniffer
         run: php vendor/bin/phpcs --standard=tests/ZendModStandard src/Saml2 demo1 demo2 endpoints tests/src
-    
+
       - name: Run unit tests
         run: vendor/bin/phpunit --verbose --debug

src/Saml2/Auth.php

@@ -171,7 +171,7 @@ class Auth
      * @throws Exception
      * @throws Error
      */
-    public function __construct(array $settings = null, bool $spValidationOnly = false)
+    public function __construct(?array $settings = null, bool $spValidationOnly = false)
     {
         $this->_settings = new Settings($settings, $spValidationOnly);
     }

src/Saml2/Settings.php

@@ -120,7 +120,7 @@ class Settings
      * @throws Error If any settings parameter is invalid
      * @throws Exception If Settings is incorrectly supplied
      */
-    public function __construct(array $settings = null,bool $spValidationOnly = false)
+    public function __construct(?array $settings = null,bool $spValidationOnly = false)
     {
         $this->_spValidationOnly = $spValidationOnly;
         $this->_loadPaths();

src/Saml2/Utils.php

@@ -954,7 +954,7 @@ public static function getExpireTime($cacheDuration = null, $validUntil = null)
      *
      * @return DOMNodeList The queried nodes
      */
-    public static function query(DOMDocument $dom, $query, DOMElement $context = null)
+    public static function query(DOMDocument $dom, $query, ?DOMElement $context = null)
     {
         $xpath = new DOMXPath($dom);
         $xpath->registerNamespace('samlp', Constants::NS_SAMLP);