Laravel Log

In the Laravel framework, the use of logs is a very important feature. It helps us track the running status of the application, debug errors, and collect key information.

1. Configuring Logs

The log configuration of Laravel is usually located in the config/logging.php file. Here, you can define different log channels (channels), such as stack, single, daily, etc. Each channel has its specific settings, such as storage path, log level, etc.

For example, if you want to store logs as a new file every day, you can configure the daily channel as follows:

'daily' => [
    'driver' => 'daily',
    'path' => storage_path('logs/laravel.log'),
    'level' => 'debug',
    'days' => 14,
],

2. Recording Logs

In the code, you can use the Log facade to record logs. Laravel provides different log levels, including debug, info, notice, warning, error, critical, and alert.

use Illuminate\Support\Facades\Log;

Log::debug('This is a debug message');
Log::info('This is a general information');
Log::warning('This is a warning message');
Log::error('This is an error message');

3. Log Context

To provide more useful information, you can also add context data when recording logs. For example:

Log::info('User login', ['user_id' => 123, 'username' => 'john_doe']);

4. Using Logs in Controllers

In controller methods, recording logs can help you understand the processing of requests and possible problems.

public function store(Request $request)
{
    try {
        // Processing request logic
        Log::info('User submitted data');
    } catch (\Exception $e) {
        Log::error('An error occurred while processing the request', ['exception' => $e]);
    }
}

5. Using Logs in Models

In the methods of the model, recording logs can track the operations of the data and possible abnormal situations.

class User extends Model
{
    public function saveUserInfo($data)
    {
        try {
            // Saving data logic
            Log::info('Saving user information');
        } catch (\Exception $e) {
            Log::error('An error occurred while saving user information', ['data' => $data, 'exception' => $e]);
        }
    }
}

By properly configuring and using Laravel Log, we can better understand the running status of the application, discover and solve problems in time, thereby improving development efficiency and application stability.