Middleware / Filters in CodeIgniter
Use filters as middleware for auth, logging, and request/response modification.
Use filters as middleware for auth, logging, and request/response modification.
Enable CSRF protection to block cross-site form/API request forgery attacks.
Enable Cross-Origin Resource Sharing so browser frontends can call your CI API.
Send emails from CodeIgniter using the Email library for notifications and forms.
Configure SMTP credentials for reliable delivery through Gmail, Mailgun, SES, or similar.
Add keyword search and filters using query parameters and Query Builder where clauses.
Upload files with CodeIgniter’s IncomingFile handling and move them to writable/uploads.
Restrict uploads to images and validate mime type, extension, and size.
Build a complete Create-Read-Update-Delete flow with routes, controller, model, and views.
Handle AJAX requests in CodeIgniter and return JSON for dynamic UI updates.