Compatible XF Versions
2.1 , 2.2 , 2.3
Visible Branding
No
There is currently no difference in functionality between the two versions other than the version of Monolog used.

Features
  • Log to a file
  • Send logs via email
  • Emailed logs are deduplicated and buffered
  • Configure minimum logging levels for files vs email logging
  • Add extra visitor data to logs: user_id and username
  • Add extra web data to logs: current request URI, request method and client IP
  • Test tool included to verify that logs are being written to disk - go to AdminCP > Tools > Checks and tests > Test Monolog
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Usage Instructions

By default, this addon will log events to a file called internal_data/monolog.log - this is configurable.

To use the default logging facility, do the following in your addon code:
PHP:
use Monolog\Helper\Log;
Log::info('an info message', ['context' => 'foo']);
Log::error('an error message', ['data' => 'bar']);

However, it is recommended that you create your own channel for your addon to make it easier to filter log entries:
PHP:
$logger = \XF::app()->get('monolog')->newChannel('myaddon');
$logger->warning('a warning message', ['context' => 'foo']);

Refer to the documentation for more detailed usage instructions for Monolog.
You can create your own handler stack to customise how things are logged:
PHP:
use Monolog\Logger;

$monolog = \XF::app()->get('monolog');
$streamhandler = $monolog->stream(); // return our default stream handler for logging to a file
                            //(or create your own!)

/** @var Monolog\Logger $logger */
$logger = $monolog->logger('myaddon');
$logger->pushHandler($streamhandler); // push our stream handler onto the handler stack
// you can apply any other customisations you like here as well by adding custom handlers, formatters or processors

$logger->critical('a critical message', ['context' => 'foo']);

Refer to Handlers, Formatters and Processors for more information.
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Author
XenForo
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Latest updates

  1. Monolog Logging Service 4.1.1

    Minor bugfix to explicitly enforce admin permissions on admincp tools
  2. Monolog Logging Service 4.1.0

    Added XF 2.3 support
  3. v4.0.0 update - Monolog v2

    v4 implememts Monolog v2 Important to note is that the default date format in logs has changed...
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