Monolog - Logging for PHP Build Status

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    Monolog sends your logs to files, sockets, inboxes, databases and various web services. See the complete list of handlers below. Special handlers allow you to build advanced logging strategies.

    This library implements the PSR-3 interface that you can type-hint against in your own libraries to keep a maximum of interoperability. You can also use it in your applications to make sure you can always use another compatible logger at a later time. As of 1.11.0 Monolog public APIs will also accept PSR-3 log levels. Internally Monolog still uses its own level scheme since it predates PSR-3.


    Install the latest version with

    $ composer require monolog/monolog

    Basic Usage

    use Monolog\Logger;
    use Monolog\Handler\StreamHandler;
    // create a log channel
    $log = new Logger('name');
    $log->pushHandler(new StreamHandler('path/to/your.log', Logger::WARNING));
    // add records to the log


    Support Monolog Financially

    Get supported Monolog and help fund the project with the Tidelift Subscription or via GitHub sponsorship.

    Tidelift delivers commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use.

    Third Party Packages

    Third party handlers, formatters and processors are listed in the wiki. You can also add your own there if you publish one.



    • Monolog 2.x works with PHP 7.2 or above, use Monolog ^1.0 for PHP 5.3+ support.

    Submitting bugs and feature requests

    Bugs and feature request are tracked on GitHub

    Framework Integrations


    Jordi Boggiano - -
    See also the list of contributors who participated in this project.


    Monolog is licensed under the MIT License - see the LICENSE file for details


    This library is heavily inspired by Python's Logbook library, although most concepts have been adjusted to fit to the PHP world.


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