Magento 2 Development Best Practices in 2025

As Magento 2 evolves, so do development best practices. Here's what you need to know in 2025.

Code Quality Standards

Following Magento coding standards ensures your code is maintainable, scalable, and compatible with updates.

Key Practices:

• Use dependency injection instead of object manager
• Follow PSR-1, PSR-2, and PSR-12 standards
• Implement proper error handling
• Write unit and integration tests
• Document your code thoroughly

Performance Optimization

Performance should be a priority from day one:

• Minimize database queries
• Use full-page caching effectively
• Optimize images and assets
• Implement lazy loading
• Use Varnish for caching

Security Considerations

Security best practices prevent vulnerabilities:

• Sanitize all user inputs
• Use CSRF tokens in forms
• Implement proper ACL controls
• Keep Magento and extensions updated
• Regular security audits

Extension Development

When developing extensions:

• Use declarative schema for database
• Implement proper version compatibility
• Provide comprehensive documentation
• Include upgrade scripts
• Test with different Magento versions