Improve examples

examples/cakephp-mysql.yml

@@ -8,6 +8,8 @@ jobs:
       matrix:
         php-versions: ['7.4', '8.0', '8.1']
     runs-on: ubuntu-latest
+
+    # Docs: https://docs.github.com/en/actions/using-containerized-services
     services:
       mysql:
         image: mysql:latest
@@ -38,8 +40,10 @@ jobs:
           extensions: mbstring, intl, redis, pdo_mysql
           coverage: pcov
 
-      - name: Start mysql service
-        run: sudo systemctl start mysql
+      # Local MySQL service in GitHub hosted environments is disabled by default.
+      # If you are using it instead of service containers, make sure you start it.
+      # - name: Start mysql service
+      #   run: sudo systemctl start mysql.service
 
       - name: Get composer cache directory
         id: composer-cache