<?php
if (!defined('BASEPATH')) exit('No direct script access allowed');
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 * 
 */
if ( ! function_exists('remove_unknown_fields')){
    function remove_unknown_fields($row_data, $expected_fields) {
        $new_data = array();
        foreach ($row_data as $field_name => $field_value) {
            if($field_value !='' && in_array($field_name, array_values($expected_fields))){
                $new_data[$field_name] = $field_value;
            }
        }
        return $new_data; 
    }
}