How can I run php-cs-fixer in a gitlab pipeline?

Hey people,

I want to run php-cs-fixer in a pipeline (love that thing, haha).
At the moment I’ve this file.

image: shouldbee/php-cs-fixer


deploy_all:
  stage: deploy
  script:
    - declare -f php-cs-fixer >> ~/.bashrc
    - php-cs-fixer fix --config=.php_cs --verbose --diff --dry-run
    #- git ftp push  -m "Add new content"
    
    
  only:
    - clean

At the moment, I get this message :confused: