Learn CODEIGNITER with Real Code Examples
Updated Nov 27, 2025
Performance Notes
Use caching for frequent database queries
Optimize SQL queries and indexing
Minimize unnecessary library loading
Leverage CodeIgniter’s output caching
Use PHP opcode caching like OPcache
Security Notes
Enable CSRF and XSS protection
Use prepared statements for database queries
Sanitize all user inputs
Store sensitive configuration outside webroot
Regularly update CodeIgniter to latest security patches
Monitoring Analytics
Log requests and errors
Database query profiling
Performance benchmarks for controllers
Custom metrics for API response times
Monitor cache hit/miss ratios
Code Quality
Follow PSR-12 PHP coding standards
Unit test models and controllers
Document code and API endpoints
Use version control (Git) for all code
Regularly audit and refactor legacy code