//my dropshipper's feed URL - replace with your dropshipper's feed
$myFeed = 'http://www.mydropshipperssite.com/feedurl.xml';
 
// specify the name of the file you want to save
$myFilename = 'product_feed.xml';
 
 
	if ($myFeed != '') {
	//  Initialize the cURL session
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $myFeed);
	//Create a new file
	$fp = fopen($myFilename, 'w');
	// Save to file
	curl_setopt($ch, CURLOPT_FILE, $fp);
	// Execute the cURL session
	curl_exec ($ch);
	//Close cURL session and file
	curl_close ($ch);
	fclose($fp);
 
	echo "Feed Imported Successfully!";
 
 
		//check the file size - if its 0 then my dropshipper didn't provide any updates, so don't let me know
		if (filesize($myFilename) > 0) {
 
			// send email to me when executed
			$to = "youremail@yourdomain.com";
			$subject = "Feed Imported";
			$body = "Hi,\n\nThe latest product data for YOURSITE has been downloaded on ";
			$body .= date('l jS \of F Y h:i:s A')."\n\n File Size: ".filesize($myFilename) . " bytes";
 
				if (mail($to, $subject, $body)) {
				  echo("<p>Message successfully sent!</p>");
					 } else {
				 echo("<p>Message delivery failed...</p>");
				}
 
		}
 
 
	}

<?xml version="1.0" ?>
<products>
<product sku="15569" mfg_part_number="405970-1" upc="082324027055">
<inventory quantity="13"/>
<price your_price="143.18" list="159.99"/>
<description short="A product description"/>
</product>
 
<product sku="16128" mfg_part_number="406350-1" upc="082324029301">
<inventory quantity="0"/>
<price your_price="128.18" list="149.99"/>
<description short="Another product description"/>
</product>
</products>

//include the Magento API file - replace with your server path to the file
require_once('/some/path/to/public_html/app/Mage.php');
 
// ***** Configuration ******
$myDomain = 'http://www.yourdomain.com';
$myAPILogin = 'username';
$myAPIKey = 'password';
 
//calculate the price markup - useful if you have a standard markup you apply
$myMarkUp = .30;
$defaultMarkup = .30;
 
// get my saved file name
$myFilename = 'product_feed.xml';
 
//load up local xml file for processing
$feed_xml = simplexml_load_file($myFilename);
 
// Begin SOAP Requests
$client = new SoapClient($myDomain.'/api/?wsdl');
$session = $client->login($myAPILogin, $myAPIKey);
 
$updatedProducts = "";
 
//some counters - counting loops this way lets me see and set where the count increments
$x = 0;
 
//some filter date to pass to the API - add more to filter your results further - see Magento API docs
$filterData = array('type'=>'simple');
 
//get all my database products into an array
$products = $client->call($session, 'catalog_product.list', array($filterData));
 
 
//loop through my product array
foreach ($products as $product) {
 
echo "Starting product loop...<br/><br/>";
 
 
//get my database product sku - for cleaner reference in the code
$mysku = $product['sku']
 
//search directly in the product sku attribute in the xml for my sku
$res = $feed_xml->xpath("//product[@sku='$mysku']");
 
 
// if we find one, lets process it
if(!empty($res)) {
 
	//matched - make updates
	echo "Matched: ".$mysku;
 
	//price updates
	if ($res[0]->price['list'] != '') {
		$newprice = $res[0]->price['your_price'] + (($res[0]->price['list'] - $res[0]->price['your_price'])*$myMarkUp);
	} else {
		$newprice = $res[0]->price['your_price'] + ($res[0]->price['your_price']*$defaultMarkup);
	}
 
	//build my array to pass to the magento API
	$fieldPriceData = array('cost'=>$res[0]->price['your_price']*1, 'price'=>$newprice, 'upc'=>$res[0]->product['upc']);
	//update magento with price data
	$client->call($session, 'catalog_product.update', array($product['sku'], $fieldPriceData));
 
	//qty and stock updates
	if (($res[0]->inventory['quantity']*1) != 0) {
		$fieldQtyData = array('qty'=>$res[0]->inventory['quantity']*1, 'is_in_stock'=>1);
		echo "In Stock<br/>";
	} else {
		$fieldQtyData = array('qty'=>$res[0]->inventory['quantity']*1, 'is_in_stock'=>0);
		echo "Out of Stock<br/>";
	}
 
	//update magento with quantity and stock data
	$client->call($session, 'product_stock.update', array($product['sku'], $fieldQtyData));
 
	//record the updated product for emailing later
	$updatedProducts .= "SKU: ".$mysku." - ".$res[0]->description['short']."\nPrice: ".$newprice."\nCost: ".$res[0]->price['your_price']."\nQty: ".$res[0]->inventory['quantity']."\n\n";
 
	//increment my counter
	$x = $x + 1; 
 
} else {
 
echo "no match<br/><br/>";
 
}
 
 
 
// send mail to me
$to = "you@yourdomain.com";
$subject = "Feed Processed";
$body = "Hi,\n\nThe latest data for ".$myDomain." has been processed on ".date('l jS \of F Y h:i:s A')."\n\n";
$body .= "Products Updated: ".$x."\n\n".$updatedProducts;
if (mail($to, $subject, $body)) {
  echo("<p>Message successfully sent!</p>");
	 } else {
 echo("<p>Message delivery failed...</p>");
}