Validation in controllers

@2milengardev1994,

...or you could create a private method/function that handles only validations. This way your page controllers will stay small. https://codeigniter.com/user_guide/gener...te-methods
...or you could create a helper function that handles only validations. https://codeigniter.com/user_guide/gener...-functions
...or you could create a validation library. https://codeigniter.com/user_guide/gener...aries.html

You have many options to choose from.