<?php
    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);
    error_reporting(E_ALL);
    set_time_limit(0);

    require_once 'app/Mage.php';
    Mage::app();
    //Mage::app()->getStore()->setId(Mage_Core_Model_App::ADMIN_STORE_ID);

    $connection = Mage::getSingleton('core/resource')->getConnection('core_write');
    define('CSV_PATH','csvfiles/');

    $csv_fileoutput = CSV_PATH . "output_imagesupload.csv";
    $csvfileoutput = fopen($csv_fileoutput, 'a');

    $importDir = Mage::getBaseDir('media') . DS . 'incoming/';
    $file_handle = fopen("csvfiles/images_insert.csv", "r");
    while (!feof($file_handle) ) {
        $line_of_text = fgetcsv($file_handle, 1024);
        $productSKU = $line_of_text[0];
        $productid = Mage::getModel('catalog/product')->getIdBySku($productSKU);
        if ($productid)
        {
            $Products = Mage::getModel('catalog/product')->loadByAttribute('sku',$productSKU);
            $fileName = $line_of_text[1];
            $filePath = $importDir.$fileName;

            if(file_exists($filePath)) {

                $Products->addImageToMediaGallery($filePath, array('image', 'small_image', 'thumbnail'), true, false);
                $Products->save();


            /*  $Products->addImageToMediaGallery($filePath,'image',true,false);
                $Products->save();
*/
    /*
                $setbaseimage=Mage::getModel('catalog/product')->load($objProduct);
                $setbaseimage->addImageToMediaGallery($filePath,array('image','small_image','thumbnail'),true,false);
                Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);
                $setbaseimage->save();
    */
            } else{
                echo $productSKU . " Not done n";

            }
                $my_product = Mage::getModel('catalog/product')->load($productid);
                $url = $my_product->getProductUrl();

                fputcsv($csvfileoutput, array($productSKU,$url));
        }
        else {echo $productSKU." - Product is not availablen"; }

    }
    fclose($file_handle);

    ?>