An open source utility module for CodeIgniter Framework

Utils.php

<?php
/**
 * Common Utilities Library
 *
 * An open source library module for CodeIgniter Framework
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2016, Prahlad Yeri
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @author	Prahlad Yeri
 * @copyright	Copyright (c) 2016, Prahlad Yeri
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	https://gist.github.com/prahladyeri/f12a786fe21f56ba7672b7b4fa7e3d0e
 */
class Utils
{
    private $CI;

    public function __construct()
    {
       //parent::_construct();
       $this->CI =& get_instance();
       //$CI->load->helper('url');
       $this->CI->load->library('session');
       $this->CI->load->database();
    }

    /**
     * Move uploaded file to a permanent location
     * 
     * @param $tmpfilename Temporary filename
     * @param $filename Proper Filename
     * @param $path Proper path
     */
    public function save_uploaded_file($tmpfilename, $filename, $path) {
        //this will be passed:
        //$newpath = APPPATH."upload/$id"; 
        if (!file_exists($path)){
            mkdir($path, 0777, true);
        }
        move_uploaded_file($tmpfilename, $path."/".$filename);
        return $path."/".$filename;
    }
    
    public function is_session_valid($redirect=true)
    {
        if (!$this->CI->session->has_userdata("email"))
        {
                if ($redirect) exit("Invalid session.<br><br>Click <a href=\"/main/login\">here</a> to login.");
                return FALSE;
        }
//        else if ($this->CI->session->userdata("username")=="admin" && $this->CI->session->userdata("usertype") == "affiliate") 
//        {
//                exit("Invalid user type.");
//                return FALSE;
//        }
        else 
        {
                return TRUE;
        }
    }
	
//    public function is_payment_info_added($id)
//    {
//            $query = $this->CI->db->query("select business_name from affiliates where id=?", array($id));
//            $tres = $query->result_array();
//            $affiliate = $tres[0];
//            if ($affiliate["business_name"] === null || $affiliate["business_name"] === "") {
//                    return FALSE;
//            }
//            else 
//            {
//                    return TRUE;
//            }
//    }
//
//
//    public function is_zip_code_valid($zip_code)
//    {
//            //check zip_code
//            $query = $this->CI->db->query("select count(*) as cnt from zip_codes where zip_code=?", array($zip_code));
//            $results = $query->result_array();
//            //var_dump($_POST["pay_zip_code"]);
//            //var_dump($results);
//            $cnt = $results[0]["cnt"];
//            error_log("is_zip_code_valid::$cnt");
//            if ($cnt==0)
//            {
//                    return FALSE;
//            }
//            else {
//                    return TRUE;
//            }
//    }
    
}?>