PathMaps配置xdebug和Atom

I am trying to setup php-debug in the Atom editor.

Following the instructions everything seems to be fine but I don't know what to write in the config.cson.

"php-debug":
{
ServerPort: 9000
PathMaps: [
  "remotepath;localpath"
  "/base/path/on/remote/system;C:\\base\\path\\on\\local\\system"
]
}

I am working on a Symfony 3 project locally (in Ubuntu). The code is in /var/www/myprojectfolder and I don't get what I am supposed to write in the pathMaps field to make it work.

Any suggestion will be appreciated.