Display products and hide xml response

[Envox]

Hello Guys,

Im starting in prestashop and this is my first project, Im doing ecommerce and usign webservice in this project;

I have 2 questions:

The First is:

I have this code in WS(webservice)...

    $opt[ 'resource' ] = 'products'; 

    $opt[ 'display' ] = 'full';

    $xml = $webService->get($opt);

    

    The $xml go return all information of the products, same this:

<products>

<product>
    <id><![CDATA[1]]></id>
    <id_manufacturer xlink:href="http://localhost/eco...manufacturers/1"><![CDATA[1]]></id_manufacturer>
    <id_supplier xlink:href="http://localhost/eco...api/suppliers/1"><![CDATA[1]]></id_supplier>
    <id_category_default xlink:href="http://localhost/eco...pi/categories/5"><![CDATA[5]]></id_category_default>
    <new></new>

........

 

<associations>
<categories nodeType="category" api="categories">
    <category xlink:href="http://localhost/eco...pi/categories/2">
    <id><![CDATA[2]]></id>
    </category>
    <category xlink:href="http://localhost/eco...pi/categories/3">
    <id><![CDATA[3]]></id>
    </category>
    <category xlink:href="http://localhost/eco...pi/categories/4">
    <id><![CDATA[4]]></id>
    </category>
    <category xlink:href="http://localhost/eco...pi/categories/5">
    <id><![CDATA[5]]></id>
    </category>
</categories>
<images nodeType="image" api="images">
    <image xlink:href="http://localhost/eco...es/products/1/1">
    <id><![CDATA[1]]></id>
    </image>
    <image xlink:href="http://localhost/eco...es/products/1/2">
    <id><![CDATA[2]]></id>
    </image>
    <image xlink:href="http://localhost/eco...es/products/1/3">
    <id><![CDATA[3]]></id>
    </image>
    <image xlink:href="http://localhost/eco...es/products/1/4">
    <id><![CDATA[4]]></id>
    </image>
</images>

 

 

Well, and now if I use this code:

    $opt[ 'resource' ] = 'products'; 

    $opt[ 'display' ] = '[id, name, description, id_default_image]';

    $xml = $webService->get($opt);

 

The $xml now go return only this information "id, nome, description e id_default_image":

 

My question is: How need more performance, How I do to return ONLY "id, nome, description, id_default_image", AND MORE ONLY the tag images, it are in tag <associations>.

Return same this:

<product>
    <id><![CDATA[8]]></id>
    <id_default_image xlink:href="http://localhost/eco...s/products/8/24" notFilterable="true"><![CDATA[24]]></id_default_image>
    <name></name>
    <description></description>

<associations>
<images nodeType="image" api="images">
    <image xlink:href="http://localhost/eco...es/products/1/1">
    <id><![CDATA[1]]></id>
    </image>
    <image xlink:href="http://localhost/eco...es/products/1/2">
    <id><![CDATA[2]]></id>
    </image>
    <image xlink:href="http://localhost/eco...es/products/1/3">
    <id><![CDATA[3]]></id>
    </image>
    <image xlink:href="http://localhost/eco...es/products/1/4">
    <id><![CDATA[4]]></id>
    </image>
</images>

 

 

THE MY SECOND QUESTION IS:

This line code "$webService->get($opt);" will return a background gray with informations in xml, How I do for hide this return xml?:

HTTP REQUEST HEADER

GET /ecommerce/prestashop/api/products?display=%5Bid%2C+name%2C+description%2C+id_default_image%5D HTTP/1.1Authorization: Basic Nks3WFg4NjRQQUs4SEpLWkJCRDNVUVpFNTNKMTlJN1Q6Host: localhostAccept: */*

HTTP RESPONSE HEADER

HTTP/1.1 200 OKDate: Mon, 06 Jul 2015 15:08:42 GMTServer: Apache/2.4.9 (Win64) PHP/5.5.12X-Powered-By: PrestaShop WebserviceAccess-Time: 1436195323PSWS-Version: 1.6.0.14Execution-Time: 0.096Content-Sha1: 545e6385ecb8eef716d00cc9ff4adc22df581759Transfer-Encoding: chunkedContent-Type: text/xml;charset=utf-8

RETURN HTTP BODY

 

 

 

Thx... and sorry to my bad english