github workflows

.gitattributes

@@ -2,8 +2,11 @@
 * text=auto
 
 /archive export-ignore
+/_archive export-ignore
 /tests export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore
 .scrutinizer.yml export-ignore
 .travis.yml export-ignore
+phpcs.xml.dist export-ignore
+phpunit.xml.dist export-ignore

.github/workflows/pr_tests.yml

@@ -0,0 +1,64 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  phpunit-9-6:
+    strategy:
+      fail-fast: false
+      matrix:
+        php_version: ["7.4", "8.1", "8.2", "8.3"]
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: php-actions/composer@v6
+        with:
+          php_version: "7.4"
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php_version }}
+          coverage: xdebug
+      - name: Unit Tests with PHPUnit 9.6
+        run: vendor/bin/phpunit --stderr --version 9.6
+
+  phpunit-10-5:
+    strategy:
+      fail-fast: false
+      matrix:
+        php_version: ["8.1", "8.2", "8.3"]
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: php-actions/composer@v6
+        with:
+          php_version: "8.1"
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php_version }}
+          coverage: xdebug
+      - name: Unit Tests with PHPUnit 10.5
+        run: vendor/bin/phpunit --stderr --version 10.5
+
+  phpunit-11-2:
+    strategy:
+      fail-fast: false
+      matrix:
+        php_version: ["8.2", "8.3"]
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: php-actions/composer@v6
+        with:
+          php_version: "8.2"
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php_version }}
+          coverage: xdebug
+      - name: Unit Tests with PHPUnit 11.2
+        run: vendor/bin/phpunit --stderr --version 11.2

.gitignore

@@ -3,5 +3,7 @@
 \#*
 *.bak
 .idea/
-coverage.clover
 vendor/
+composer.lock
+coverage.clover
+git-phpcs.phar

.scrutinizer.yml

@@ -1,6 +1,19 @@
+# .scrutinizer.yml
 build:
     nodes:
         analysis:
+            environment:
+                php:
+                    version: 7.4
+            project_setup:
+                override: true
             tests:
                 override:
-                    - php-scrutinizer-run
+                - php-scrutinizer-run
+filter:
+    excluded_paths:
+        - '_archive/*'
+        - 'tests/*'
+tools:
+    external_code_coverage:
+        timeout: 300    # Timeout in seconds.

phpunit.xml.dist

@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" bootstrap="vendor/autoload.php" colors="true">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.6/phpunit.xsd" 
+    bootstrap="vendor/autoload.php" 
+    colors="true">
   <coverage processUncoveredFiles="true">
     <include>
       <directory suffix=".php">./src</directory>