Add the right file...

image: php 5.4-cli

before_script:

  - apt-get clean

  - apt-get update

  - apt-get install -y php5-cli

syntax:

  script:

  - php -l htdocs/index.php

  - php -l components/*.php

  - php -l plugins/*.php

  - php -l lib/*.php

 No newline at end of file

  - find components | xargs -n 1 php -l

  - find plugins | xargs -n 1 php -l

  - find lib | xargs -n 1 php -l

 No newline at end of file