public_producer/config/autoload/logger.php

<?php

return [
    'default' => [
        'handler' => [
            'class' => \Monolog\Handler\StreamHandler::class,
            'constructor' => [
                'stream' => BASE_PATH . '/runtime/logs/hyperf.log',
                'level' => \Monolog\Logger::DEBUG,
            ],
        ],
        'formatter' => [
            'class' => \Monolog\Formatter\LineFormatter::class,
            'constructor' => [
                'format' => null,
                'dateFormat' => null,
                'allowInlineLineBreaks' => true,
            ]
        ],
    ],
];