MY_Form_validation.php

<?php if (!defined('BASEPATH')) exit('No direct script access allowed.');

class MY_Form_validation extends CI_Form_validation {

  function MY_Form_validation() {
    parent::CI_Form_validation();
  }
  
  // matches_pattern()
  // Ensures a string matches a basic pattern
  // # numeric, ? alphabetical, ~ any character
  function matches_pattern($str, $pattern) {
  }
}