Setup GitHub actions

.gitattributes

@@ -1,7 +1,7 @@
 .coveralls.yml export-ignore
 .gitattributes export-ignore
+.github/ export-ignore
 .gitignore export-ignore
-.travis.yml export-ignore
 composer.json export-ignore
 phpunit.xml.dist export-ignore
 tests export-ignore

.github/workflows/php.yml

@@ -0,0 +1,35 @@
+name: PHP Composer
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-versions:
+          - "7.2"
+          - "7.3"
+          - "7.4"
+          - "8.0"
+          - "8.1"
+
+    name: PHP ${{ matrix.php-versions }} test
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Setup PHP with XDebug
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+        coverage: xdebug
+        tools: composer
+
+    - name: Install dependencies
+      run: composer install --prefer-dist --no-progress
+
+    - name: Run tests
+      run: composer test