How to use env variables inside config files

[Anubarak]

How can I reference env variables inside phpstan.neon files?

My config currently looks like

includes:
    - %env.CMS_PHP_STAN_PATH%

parameters:
    bootstrapFiles:
        - phpstan-bootstrap.php
    level: 8
    paths:
        - modules
    excludePaths:
        - web/*
    scanDirectories:
        - %env.CMS_BASE_PATH%

phpstan-bootstrap.php

require_once __DIR__. '/vendor/autoload.php';

$dotenv = Dotenv\Dotenv::createImmutable(__DIR__, '.env.phpstan');
$dotenv->load();

env.phpstan

CMS_PHP_STAN_PATH="C:\Users\...\phpstan\phpstan.neon"
CMS_BASE_PATH="C:\xampp\htdocs\...\..."

The reason behind this is: we always execute our code on a remote system and each of my team only has a local instance of the CMS we use on our system. We include this as a PHPStorm include path and do not install the CMS again and again in each folder but everyone places the CMS in a different location. So I wanted to create the path to the local folder as an env variable.
Is that possible?

however I always get the error

PHP Warning: Undefined array key "CMS_BASE_PATH"

I know there is similar question #8120 but I have no idea how to use a relFile

[ondrejmirtes]

It's too late to do this in a bootstrap file.

if you define them in Bash before running PHPStan, it works as expected:

export CMS_PHP_STAN_PATH="C:\Users\...\phpstan\phpstan.neon"
export CMS_BASE_PATH="C:\xampp\htdocs\...\..."

[Anubarak]

Thank you for your answer, however that does not work

'export' is not recognized as an internal or external command, operable program or batch file.

plus: this would mean we all had to always insert this before we run phpstan. Is there no better way?

[ondrejmirtes]

If export doesn't work for you it means you're not on Linux. There's probably a different way of setting environment variables on Windows.

What do you typically put into this file?

includes:
    - %env.CMS_PHP_STAN_PATH%

What are the typical values of %env.CMS_BASE_PATH%?

[ondrejmirtes]

Also have you seen this approach? Every team member can have their own environment-specific file, and in that file they can include the versioned file with common settings: https://phpstan.org/config-reference#multiple-files

[Anubarak]

That will do it, thank you very much