[ 'validations' => 'integer', 'fieldname' => 'klant' ], 'startdate' => [ 'validations' => 'date', 'fieldname' => 'start project' ], 'enddate' => [ 'validations' => 'date', 'fieldname' => 'eind project' ] ]; public function __construct() { parent::__construct(); $this->ci =& get_instance(); $this->handleSpecificValidations(); } protected function handleSpecificValidations() { } }