Similarities:

• Open Source
• MVC Pattern
• CLI Tools
• Testing Tools
• Full-Stack
• Cross-Platform
• Internationalization
• Extensible

Differences:

Laravel

• Learning Curve: Easier, beginner-friendly
• Development Speed: Faster, rapid development
• Flexibility: Less flexible, opinionated structure
• Scalability: Good for most projects, may require optimization for very large applications 
• Community: Larger and more active
• Documentation: Excellent, comprehensive, and easy to follow
• Security: Strong security features, simpler approach
• Performance: Generally faster for most applications
• Template Engine ORM: Blade (simple and easy to use) Eloquent (Active Record pattern)

Symfony

• Learning Curve: Steeper, requires more experience
• Development Speed: Slower, more time for setup and configuration
• Flexibility: More flexible, allows for customization
• Scalability: Excellent for large, complex applications
• Community: Mature and extensive, known for quality
• Documentation: Good, but can be more technical
• Security: Highly configurable security component, more granular control
• Performance: Can be optimized for high-performance applications
• Template Engine ORM: Twig (powerful and flexible) Doctrine (Data Mapper pattern)