Form validation by my own method

Hello, RogerMore!

Thank you for aswer. But callback function doesn't suit me - I'd like to use this function not only in this controller. But this form ($this->input->post("password")) is what I was looking for. Thank you!

If you don't mind, I have one more question. If I am using callback function, I have to declare it such:

PHP Code:

public function my_callback_function($str)
{
   ...
} 


And there is an opportunity to call this function via URL, for example: http://www.mysite.com/my_controller/my_c...nction/aaa

How can I hide such functions? I've tried "protected" and "private", but it doesn't work.

Thank you.