Merge pull request #118 from 10up/php8-compat

Add PHP8 compatibility workflow

.github/workflows/php-compatibility.yml

@@ -0,0 +1,33 @@
+name: PHP Compatibility
+
+on:
+  push:
+    branches:
+      - develop
+      - trunk
+  pull_request:
+    branches:
+      - develop
+
+jobs:
+  php-compatibility:
+    name: PHP minimum 5.6
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set PHP version
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '7.0'
+          tools: composer:v2
+          coverage: none
+
+      - name: Install dependencies
+        run: composer install
+
+      - name: Run PHP Compatibility
+        run: vendor/bin/phpcs insert-special-characters.php --standard=PHPCompatibilityWP --extensions=php --runtime-set testVersion 5.6-

composer.json

@@ -12,7 +12,9 @@
     ],
     "minimum-stability": "dev",
     "prefer-stable": true,
-    "require": {},
+    "require-dev": {
+        "10up/phpcs-composer": "dev-master"
+    },
     "config": {
         "allow-plugins": {
             "dealerdirect/phpcodesniffer-composer-installer": true