Development Logger Library

A lightweight, production-ready logging utility for development environments.

Requirements

• PHP 7.4 or higher
• Composer (recommended for installation)

Table of Contents

• Features
• Installation
• Usage
• Log Levels
• Log Format
• File Structure
• Configuration
• Testing
• Contributing
• License
• Security

Features

• Multiple log levels (DEBUG, INFO, WARNING, ERROR, CRITICAL)
• Automatic log rotation (10MB max, keeps 5 files)
• Context data support
• Thread-safe file writing
• Git-ignored log files
• PSR-4 autoloading
• Composer package support
• Comprehensive test suite
• GitHub Actions CI/CD

Installation

Via Composer (Recommended)

composer require jmrashed/logger

Manual Installation

Download the Logger.php file and include it in your project.

Usage

// Using Composer autoload
require_once 'vendor/autoload.php';

// Or manual include
require_once $_SERVER['DOCUMENT_ROOT'] . '/_Logger/Logger.php';

// Basic logging
\DevLogger\Logger::info('User logged in');
\DevLogger\Logger::error('Database connection failed');
\DevLogger\Logger::warning('Deprecated function used');

// Logging with context
\DevLogger\Logger::info('User action', ['user_id' => 123, 'action' => 'login']);
\DevLogger\Logger::error('Query failed', ['query' => 'SELECT * FROM users', 'error' => $e->getMessage()]);

Log Levels

• DEBUG - Detailed debug information
• INFO - General information messages
• WARNING - Warning messages
• ERROR - Error conditions
• CRITICAL - Critical conditions

Log Format

[2024-01-15 14:30:25] [INFO] User logged in {"user_id":123,"action":"login"}

File Structure

_Logger/
├── Logger.php              # Main logger class
├── example.php             # Usage example
├── composer.json           # Composer package configuration
├── phpunit.xml.dist        # PHPUnit configuration
├── .gitignore              # Git ignore rules
├── CHANGELOG.md            # Change log
├── CODE_OF_CONDUCT.md      # Code of conduct
├── CONTRIBUTING.md         # Contributing guidelines
├── LICENSE                 # License file
├── README.md               # This file
├── SECURITY.md             # Security policy
├── .github/                # GitHub workflows and templates
├── docs/                   # Documentation
│   ├── API.md              # API documentation
│   └── INSTALL.md          # Installation guide
└── tests/                  # Test files
    └── LoggerTest.php      # Unit tests

Configuration

The logger automatically:

• Creates log directory if it doesn't exist
• Rotates logs when they exceed 10MB
• Keeps maximum 5 log files
• Uses thread-safe file writing

Testing

Run the test suite:

composer test

Contributing

Contributions are welcome! Please see our Contributing Guide for details.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Security

For security issues, please see our Security Policy.

Author

Md Rasheduzzzaman

• Email: jmrashed@gmail.com
• GitHub: @jmrashed
• Repository: https://github.com/jmrashed/logger