Run CI on multiple PHP versions

.github/workflows/ci.yml

@@ -0,0 +1,74 @@
+name: Continuous integration
+
+on:
+  workflow_dispatch: ~
+  push:
+    branches:
+      - develop
+      - main
+  pull_request:
+    branches:
+      - develop
+      - main
+
+jobs:
+  ci:
+    name: Linting, tests and coverage
+    runs-on: ubuntu-22.04
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php:
+          - version: 5.6
+            unittest-version: Legacy
+          - version: 7.0
+            unittest-version: PHP7_0
+          - version: 7.1
+            unittest-version: PHP7_0
+          - version: 7.2
+            unittest-version: PHP7_2
+          - version: 7.3
+            unittest-version: PHP7_2
+          - version: 7.4
+            unittest-version: PHP7_2
+          - version: 8.0
+            unittest-version: PHP7_2
+          - version: 8.1
+            unittest-version: PHP8_1
+          - version: 8.2
+            unittest-version: PHP8_1
+          - version: 8.3
+            unittest-version: PHP8_1
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php.version }}
+          tools: composer:v2
+
+      - name: Validate composer.json and composer.lock
+        run: composer validate
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Prepare unittests configuration
+        run: sed -i 's/{MYVERSION}/${{ matrix.php.unittest-version }}/g' phpunit.ci.xml
+
+      - name: Ensure source code is linted
+        run: ./vendor/bin/phpcs src
+
+      - name: PHPUnit
+        run: ./vendor/bin/phpunit -c phpunit.ci.xml --coverage-xml ./.coverage
+        env:
+          XDEBUG_MODE: coverage
+
+      - name: PHPUnit threshold
+        run: php ./phpunit-threshold.php

README.md

@@ -11,7 +11,7 @@ If you find yourself needing to use some endpoints that are not yet implemented,
 Installation
 ------------
 
-The Alma PHP API Client library requires at least PHP 5.6.
+The Alma PHP API Client library is tested against all recently supported PHP versions.
 A modern, [supported PHP version](https://www.php.net/supported-versions.php) is highly recommended.
 
 ### Composer

composer.json

@@ -4,7 +4,7 @@
   "version": "2.0.7",
   "type": "library",
   "require": {
-    "php": "^5.6 || ~7.0 || ~7.1 || ~7.2 || ~7.3 || ~7.4 || ~8.0 || ~8.1 || ~8.2",
+    "php": "^5.6 || ~7.0 || ~7.1 || ~7.2 || ~7.3 || ~7.4 || ~8.0 || ~8.1 || ~8.2 || ~8.3",
     "psr/log": "^1 || ^2 || ^3",
     "ext-curl": "*",
     "ext-json": "*",

phpunit.ci.xml

@@ -11,8 +11,8 @@
          stopOnFailure               = "true">
 
     <testsuites>
-        <testsuite name="Alma PHP Client Unit Test Suite Legacy">
-            <directory>tests/Unit/Legacy</directory>
+        <testsuite name="Alma PHP Client Unit Test Suite">
+            <directory>tests/Unit/{MYVERSION}</directory>
         </testsuite>
     </testsuites>
     <filter>