README

Academic research package providing comprehensive performance analysis and complexity metrics for all 23 Gang of Four (GoF) design patterns in PHP.

Features

• ✅ 23 GoF Patterns - Complete implementation
• ✅ Performance Benchmarks - Detailed metrics
• ✅ Complexity Analysis - Cyclomatic complexity
• ✅ Memory Profiling - Resource usage
• ✅ PHPStan Level 9 - Strict type checking
• ✅ Comprehensive Tests - 90%+ coverage

Design Patterns Included

Creational Patterns

• Singleton
• Factory Method
• Abstract Factory
• Builder
• Prototype

Structural Patterns

• Adapter
• Decorator
• Facade
• Composite
• Proxy
• Bridge
• Flyweight

Behavioral Patterns

• Observer
• Strategy
• Command
• Iterator
• State
• Template Method
• Chain of Responsibility
• Mediator
• Memento
• Visitor
• Interpreter

Installation

composer require --dev syeedalireza/design-patterns-benchmark

Quick Start

Run Benchmarks

use DesignPatternsBenchmark\Benchmarks\PatternBenchmark;

$benchmark = new PatternBenchmark();
$results = $benchmark->comparePatterns(iterations: 1000);

foreach ($results as $result) {
    echo "{$result['pattern']}: {$result['time_ms']}ms\n";
}

Example Results

Pattern         | Time (ms) | Memory (KB) | Complexity
----------------|-----------|-------------|------------
Singleton       | 0.15      | 1.2         | O(1)
Factory         | 2.50      | 8.5         | O(n)
Observer        | 5.20      | 15.3        | O(n²)

Testing

composer test
composer analyse
composer benchmark

License

MIT - See LICENSE.md

Author

Alireza Aminzadeh

• GitHub: @syeedalireza
• Packagist: syeedalireza