Where is the laravel log?

During the development process, it is often necessary to view the logs recorded by the application for debugging and troubleshooting. As an excellent PHP framework, Laravel naturally provides excellent logging functions. However, for developers who are new to Laravel, they may encounter the problem of where the Laravel log is. Next, this article will introduce you to Laravel's logging function and how to find Laravel's log files.

1. Laravel logging function

In Laravel, logging is a very important function. Laravel’s built-in logging function can record various events in the application. and errors for easy troubleshooting and correction. Laravel provides multiple log drivers, including file, syslog, errorlog, monolog, etc. By default, Laravel uses the file log driver, and the location of the log file is in the storage/logs directory of the Laravel project.

In Laravel, logging is very simple. You only need to use the methods provided by the Log class:

use IlluminateSupportFacadesLog;

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

In the above code, the info, warning and error methods are used to record three types of information. level of log information. Laravel provides 8 levels of log information, namely emergency, alert, critical, error, warning, notice, info and debug. Developers can choose the appropriate log level for recording according to the actual situation.

The above code can also be written as a chain call:

Log::channel('stack')
    ->emergency('This is an emergency message.')
    ->alert('This is an alert message.')
    ->critical('This is a critical message.')
    ->error('This is an error message.')
    ->warning('This is a warning message.')
    ->notice('This is a notice message.')
    ->info('This is an info message.')
    ->debug('This is a debug message.');

In the above code, the channel method is used to specify the log channel, and then each method is used to record different levels of log information.

2. Laravel log file location

In Laravel, by default, the log file location is storage/logs/laravel-2021-05-13.log, where , laravel-2021-05-13.log is the log file of the current date. In other words, when we record the log on May 13, 2021, the name of the generated log file is laravel-2021-05-13.log.

Of course, we can also manually record the log file name, using the following code:

Log::useFiles('path/to/your/logfile.log');

In the above code, the useFiles method can specify the location and name of the log file, and developers can adjust it as needed. .

3. Find Laravel log files

By default, Laravel's log files are located in the storage/logs directory. However, in a production environment, access to this directory may be restricted for security reasons. At this time, we can set the LOG_CHANNEL environment variable in the .env file to use other log drivers, such as syslog or errorlog.

First, if we are using the file log driver, we need to ensure that the storage/logs directory has the correct permissions. For example, you can change the permissions of the directory through the following command:

chmod -R 777 storage/logs/

If we are using other log drivers instead of file, we need to record the log information to the system log or application log. For example, you can record log information to syslog and then use the syslog tool to view the log information. You can also record log information to application logs, such as Apache or Nginx access logs, and then use the corresponding tools or commands to view them.

In short, if you want to find Laravel's log files, then you need to first determine which log driver you are using, and then view the corresponding log file or logging tool. Decide which log driver and recording method to use based on your actual situation.

Summary

This article introduces Laravel’s logging function and how to find Laravel’s log files. Laravel provides developers with a convenient logging function, which can easily record various events and error information of the application for easy troubleshooting and repair. When developers need to view log files, they need to select an appropriate log driver and recording method to view log files based on the actual situation.

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