TechEmpower.FrameworkBenchmarks/frameworks/PHP/laravel/config/logging.php

<?php

use Monolog\Handler\StreamHandler;
use Monolog\Handler\SyslogUdpHandler;

return [
    /*
     * Benchmark note:
     *
     * If Laravel does not have a log defined it will open an emergency log file and log
     * errors to the filesystem.   This configuration sends logs to stdout instead.
     * php-fpm directs these to /dev/null unless "catch_workers_output = yes" is set in php-fpm.conf
     *
     */

    /*
    |--------------------------------------------------------------------------
    | Default Log Channel
    |--------------------------------------------------------------------------
    |
    | This option defines the default log channel that gets used when writing
    | messages to the logs. The name specified in this option should match
    | one of the channels defined in the "channels" configuration array.
    |
    */

    'default' => env('LOG_CHANNEL', 'stdout'),

    /*
    |--------------------------------------------------------------------------
    | Log Channels
    |--------------------------------------------------------------------------
    |
    | Here you may configure the log channels for your application. Out of
    | the box, Laravel uses the Monolog PHP logging library. This gives
    | you a variety of powerful log handlers / formatters to utilize.
    |
    | Available Drivers: "single", "daily", "slack", "syslog",
    |                    "errorlog", "monolog",
    |                    "custom", "stack"
    |
    */

    'channels' => [
        'stdout' => [
            'driver' => 'monolog',
            'handler' => StreamHandler::class,
            'formatter' => env('LOG_STDERR_FORMATTER'),
            'with' => [
                'stream' => 'php://stdout',
            ],
        ],
    ],

];