Question 273050 in Laravel Question posted in
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Can't set log channel to null in Laravel

In a project I have three environment files for testing

.env.testing for unit/feature tests, .env.dusk.local for local Dusk tests, and .env.dusk.testing for CI/CD Dusk tests. I’m trying to set the log channel for all of these to null, because I don’t need tests to log anything at all.

When I replace the logging variables in these files with:

LOG_CHANNEL=null

…and try to run the Dusk tests, I get the following in my logs:

[2023-10-26 18:38:28] laravel.EMERGENCY: Unable to create configured logger. Using emergency logger. {"exception":"[object] (InvalidArgumentException(code: 0): Log [] is not defined. at D:\Path\To\Site\mysite\vendor\laravel\framework\src\Illuminate\Log\LogManager.php:210)
[stacktrace]
...

I know this should be possible based on the documentation, and I’ve confirmed that I have the following set up in logging.php:

'null' => [
    'driver' => 'monolog',
    'handler' => NullHandler::class,
],

I’ve also run php artisan optimize:clear to rule out the configuration cache. For what it’s worth, I did use Laravel Shift to upgrade to Laravel 9 recently, in case this is a dependency or version-specific issue.

Tags:

2

Answers


  1. 0

    Laravel doesn’t consider every .env variable as string, there are special keywords that will be converted to other types. In your case, null seems to be converted effectively to a null value inside Laravel.

    Try to change your channel name to something else (like nullable for example):

    // in .env use LOG_CHANNEL=nullable

'nullable' => [
    'driver' => 'monolog',
    'handler' => NullHandler::class,
],

    Or you can also try to wrap null inside double quotes in your .env file: LOG_CHANNEL="null"

    Reference: https://laravel.com/docs/10.x/configuration#environment-variable-types

    Another solution, also this seems to be not well documented, is to use null driver like this:

    'nullable' => [
    'driver' => 'null',
    'handler' => NullHandler::class, // probably not needed
],
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  2. 0

    You can try this and see. (It wasn’t tested)

    In config/logging.php

    use MonologHandlerNullHandler;

'channels' => [
    'null' => [
        'driver' => 'monolog',
        'handler' => MonologHandlerNullHandler::class,
    ],
],

    and run

    php artisan config:clear

    Make sure in .env

    LOG_CHANNEL=null
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