How to disable/enable keys

Try this if you didn't solved yours issue yet

Code:

$config = array(
array(
'field' => 'length', // this must match yours <input name=""> field in form
'label' => 'Length',
'rules' => 'required|regex_match/[0-9.]/', // you had extra ' on end
'errors' => array( 'required' => 'Provide%s', '%sNumbersOnly' )
)
); // you didn't closed array here

@brianjamestorr can you email me at chris252423 [at] g mail .com