Form Validation and Regexp

[eluser]Unknown[/eluser]
You can use it the same way you would use any other validation rule.

Code:

$this->form_validation->set_rules('field name', 'human name', 'regex_match[expression]');

Replace 'expression' with the regular expression from your database.

http://ellislab.com/codeigniter/user-gui...ationrules

However, if your regular expression contains square brackets then you need to use a callback.

There is some more info in this thread: http://ellislab.com/forums/viewthread/185601/

I am not sure why this validation function isn't documented in the user guide. Can anyone provide any insight?