Beginner gets some problem

[eluser]mi6crazyheart[/eluser]
Why u want to force user for a specif type(min. 4 char) of email-id. Bcz, email-id is it self a unique address.
Any way, if u want to restrict user for 4 character email id then i think this validation rule will help u...

Code:

$this->form_validation->set_rules('username', 'Username', 'required|min_length[4]');

For more info: http://ellislab.com/codeigniter/user-gui...ation.html