feat!: drop support for php 7.4 (#11)

* build: updated PHP version to 8.0 in composer.json

* refactor: utilise null being a stand-alone type for applyCasts

* refactor: utilise named arguments in module class

* fix: updating workflows

* chore: trigger CI

* fix: removed named arguments for 3rd party function calls

* fix: coding standard

.github/workflows/ci.yaml

@@ -8,18 +8,18 @@ on:
 jobs:
   security:
     uses: dvsa/.github/.github/workflows/php-library-security.yml@main
-    with: 
-      php-versions: "[\"7.4\", \"8.0\", \"8.1\", \"8.2\"]"
+    with:
+      php-versions: "[\"8.0\", \"8.1\", \"8.2\", \"8.3\"]"
     secrets:
       SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
 
   static-analysis:
     uses: dvsa/.github/.github/workflows/php-library-static.yml@main
     with:
-      php-version: '8.2'
+      php-version: '8.3'
 
   tests:
     uses: dvsa/.github/.github/workflows/php-library-tests.yml@main
     with:
-      php-versions: "[\"7.4\", \"8.0\", \"8.1\", \"8.2\"]"
+      php-versions: "[\"8.0\", \"8.1\", \"8.2\", \"8.3\"]"
       fail-fast: false

composer.json

@@ -12,7 +12,7 @@
     }
   },
   "require": {
-    "php": "^7.4 || ^8.0",
+    "php": "^8.0",
     "ext-json": "*",
     "laminas/laminas-modulemanager": "^2.4|^3.0",
     "laminas/laminas-config": "^2.0|^3.0",

src/Module.php

@@ -94,7 +94,7 @@ private function applyCasts(array &$config, array $casts): void
         $propertyAccessor = PropertyAccess::createPropertyAccessor();
 
         foreach ($casts as $key => $type) {
-            if (!is_a($type, Cast\CastInterface::class, true)) {
+            if (!is_a($type, Cast\CastInterface::class, allow_string: true)) {
                 throw new InvalidCastException("Class {$type} must implement " . Cast\CastInterface::class . " interface.");
             }
 
@@ -108,7 +108,7 @@ private function applyCasts(array &$config, array $casts): void
 
             $value = $propertyAccessor->getValue($config, $property);
 
-            if (isset($value) && is_string($value)) {
+            if (is_string($value)) {
                 $propertyAccessor->setValue($config, $property, (new $type())($value));
             }
         }