Modifiy PHP to use variables sent by get request from my website

I have this script on my website that makes a get request to a php file with some information that works prefect : var vendor = 'Asiduo'; var product_type = 'comida_configurada'; var price = $('.subtotal').data('total'); var featured_image = $('.[login to view URL]').data('image'); // [login to view URL](body_html); var data = { "action" : "add_product" , "title" : "Custom Box Item", "body_html" : body_html, "vendor" : vendor, "product_type" : product_type, "price" : price, "featured_image" : featured_image }; data = $(this).serialize() + "&" + $.param(data); $.ajax({ url: 'http:/h/[login to view URL]', method: 'GET', data: data, dataType: 'jsonp', crossDomain: true, jsonpCallback: 'myCallback', success: function(data) { }, error: function(XMLHttpRequest, textStatus, errorThrown) { [login to view URL]("Status: " + textStatus); [login to view URL]("Error: " + errorThrown); [login to view URL]("request: " + XMLHttpRequest); } }); And have a php file on my server that creates a "general predefined" products on Shopify ( an e-commerce solution ). And works perfect too. BUT I want you to modify this generic php to accept the data from the get request and create a product with the real variables. The work only implies modifying the php to retrieve the variables from the request, and store them in the product arrray. The php does the rest by itself. <? session_start(); require __DIR__.'/vendor/[login to view URL]'; use phpish\shopify; require __DIR__.'/[login to view URL]'; $shopify = shopify\client(SHOPIFY_SHOP, SHOPIFY_APP_API_KEY, SHOPIFY_APP_PASSWORD, true); try { # Making an API request can throw an exception $product = $shopify('POST /admin/[login to view URL]', array(), array ( 'product' => array ( "title" => "Roberto Prueba", "body_html" => "<strong>Good snowboard!</strong>", "vendor" => "Penis", "product_type" => "Snowboard", "variants" => array ( array ( "option1" => "First", "price" => "10.00", "sku" => 123, ), array ( "option1" => "Second", "price" => "20.00", "sku" => "123" ) ) ) )); print_r($product); } catch (shopify\ApiException $e) { # HTTP status code was >= 400 or response contained the key 'errors' echo $e; print_R($e->getRequest()); print_R($e->getResponse()); } catch (shopify\CurlException $e) { # cURL error echo $e; print_R($e->getRequest()); print_R($e->getResponse()); } ?>