Phpstan doctrine database connection error

Question

I'm using doctrine in a project (not symfony). In this project I also use phpstan, i installed both phpstan/phpstan-doctrine and phpstan/extension-installer. My phpstan.neon is like this:

parameters:
    level: 8
    paths:
        - src/
    doctrine:
        objectManagerLoader: tests/object-manager.php

Inside tests/object-manager.php it return the result of a call to a function that return the entity manager.

Here is the code that create the entity manager

$database_url = $_ENV['DATABASE_URL'];
$isDevMode = $this->isDevMode();
$proxyDir = null;
$cache = null;
$useSimpleAnnotationReader = false;

$config = Setup::createAnnotationMetadataConfiguration(
    [$this->getProjectDirectory() . '/src'],
    $isDevMode,
    $proxyDir,
    $cache,
    $useSimpleAnnotationReader
);


// database configuration parameters
$conn = [
    'url' => $database_url,
];

// obtaining the entity manager
$entityManager = EntityManager::create($conn, $config);

When i run vendor/bin/phpstan analyze i get this error:

Internal error: An exception occurred in the driver: SQLSTATE[08006] [7] could not translate host name "postgres_db" to address: nodename nor servname provided, or not known

This appear because i'm using docker and my database url is postgres://user:password@postgres_db/database postgres_db is the name of my database container so the hostname is known inside the docker container.

When i run phpstan inside the container i do not have the error.

So is there a way to run phpstan outside docker ? Because i'm pretty sure that when i'll push my code the github workflow will fail because of this

Do phpstan need to try to reach the database ?