Tag: Tutorial

Connect CodeIgniter 4 to MySQL/MariaDB and test the connection.

Read query string and form body data using getGet() and getPost().

Collect submitted form fields in a controller and prepare them for validation or saving.

Validate user input with CodeIgniter’s Validation service and show field errors in views.

Create custom validation rules for business-specific checks beyond built-in rules.

Show one-time success/error messages after redirects using session flashdata.

Create PHP view files to render HTML output for your pages.

Build reusable layouts with sections/extends (view layouts) to avoid duplicated HTML.

Loop data and print dynamic values safely in CodeIgniter views using esc().

Generate links and site URLs with base_url(), site_url(), and current_url().