<PixiReadAddItemsPost200TextXmlResponse>
  <AddItemKey>0</AddItemKey>
  <EANUPC>string</EANUPC>
  <UPC>string</UPC>
  <ItemNrSuppl>string</ItemNrSuppl>
  <ItemNrInt>string</ItemNrInt>
  <ItemNrOld>string</ItemNrOld>
  <SupplNr>string</SupplNr>
  <Price>0</Price>
  <SupplPrice>0</SupplPrice>
  <Curr_Source>string</Curr_Source>
  <MwStSatz>0</MwStSatz>
  <AutoPrice>true</AutoPrice>
  <CreateDate>string</CreateDate>
  <UpdateDate>string</UpdateDate>
  <ItemRef>0</ItemRef>
  <LastImportDate>string</LastImportDate>
  <SKU>string</SKU>
  <PreferredSupplier>true</PreferredSupplier>
  <Active>true</Active>
</PixiReadAddItemsPost200TextXmlResponse>

POST https://apigateway.descartes.com/tms/pixi/
Content-Type: text/xml; charset=utf-8
# echo -n '{{username}}:{{password}}' | base64 | pbcopy
Authorization: Basic {{token}}

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
                   xmlns:ns1="https://apigateway.descartes.com/tms/pixi/"
                   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                   SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
    <SOAP-ENV:Body>
        <ns1:pixiReadAddItems>
            <RowCount xsi:type="xsd:integer">123</RowCount>
            <AddItemKey xsi:type="xsd:integer">123</AddItemKey>
            <CreateDateTo xsi:type="xsd:string">YYYY-MM-DD hh:mm:ss</CreateDateTo>
            <UpdateDateTo xsi:type="xsd:string">YYYY-MM-DD hh:mm:ss</UpdateDateTo>
            <CreateDateFrom xsi:type="xsd:string">YYYY-MM-DD hh:mm:ss</CreateDateFrom>
            <UpdateDateFrom xsi:type="xsd:string">YYYY-MM-DD hh:mm:ss</UpdateDateFrom>
            <CreateAndUpdateDateTo xsi:type="xsd:string">YYYY-MM-DD hh:mm:ss</CreateAndUpdateDateTo>
            <CreateAndUpdateDateFrom xsi:type="xsd:string">YYYY-MM-DD hh:mm:ss</CreateAndUpdateDateFrom>
        </ns1:pixiReadAddItems>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

<?php

getPixiSoapClientResponse('pixiReadAddItems', [
    'RowCount' => '123', // integer
    'AddItemKey' => '123', // integer
    'CreateDateTo' => 'YYYY-MM-DD hh:mm:ss', // string
    'UpdateDateTo' => 'YYYY-MM-DD hh:mm:ss', // string
    'CreateDateFrom' => 'YYYY-MM-DD hh:mm:ss', // string
    'UpdateDateFrom' => 'YYYY-MM-DD hh:mm:ss', // string
    'CreateAndUpdateDateTo' => 'YYYY-MM-DD hh:mm:ss', // string
    'CreateAndUpdateDateFrom' => 'YYYY-MM-DD hh:mm:ss', // string
]);

function getPixiSoapClientResponse(string $method, array $arguments = [])
{
    $soapArguments = [];
    foreach ($arguments as $key => $value) {
        $soapArguments[] = new SoapVar($value, null, '', '', $key);
    }

    $soapClient = new SoapClient(null, [
        'login' => '...',
        'password' => '...',
        'uri' => 'https://apigateway.descartes.com/tms/pixi/',
        'location' => 'https://apigateway.descartes.com/tms/pixi/',
    ]);

    return $soapClient->__call($method, $soapArguments);
}