Simple Logger plugin for Craft CMS

Plugin for collecting exception handler logs and reporting over email. A simple solution for those who can't or won't pay for corporate logging solutions like New Relic, Dynatrace, Datadog, and others.

Requirements

This plugin requires:

• Craft CMS ^5.0.0
• PHP ^8.2 || ^8.3 || ^8.4 || ^8.5

If you don't receive daily emails, check:

1. If your email setup is correct
2. If Simple Logger plugin is active (LOGGER_ON=1)
3. If you have exceptions in storage/logs/simplelogger.json

Installation

composer require leowebguy/simple-logger -w && php craft plugin/install simple-logger

Usage

Set these .env parameters to configure Simple Logger:

# Simple Logger
LOGGER_ON=1
LOGGER_EMAIL=john@email.com

LOGGER_EMAIL accepts multiple comma-separated emails:

LOGGER_EMAIL=john@email.com,jane@email.com

If LOGGER_EMAIL is not set, Simple Logger defaults to sending the report to all Craft CMS administrators.

The plugin listens to Craft's ErrorHandler::EVENT_BEFORE_HANDLE_EXCEPTION event to capture exceptions, logging them to storage/logs/simplelogger.json:

[
  {
    "time": "2026-11-01 17:37:21",
    "sourcetype": "Exception 400",
    "level_name": "ERROR",
    "message": "Twig\\Error\\RuntimeError: Calling unknown method: craft\\web\\twig\\variables\\CraftVariable::deviceDetect1() in /var/www/html/templates/index.twig:10"
  }
]

Once a day, Simple Logger processes the log file and queues a background email job (EmailJob) to the configured recipient(s).

Simple Logger automatically ignores NotFoundHttpException exceptions (such as 404s for nonexistent pages or missing static assets).

Development & Testing

# Run PHPStan Level 8 static analysis
composer phpstan

# Check PSR-12 code style
composer pint-test

# Auto-fix PSR-12 code style
composer pint

# Run Craft 5 Rector rules
composer rector

Feeling creative?

PR into https://github.com/leowebguy/simple-logger