commonWebservice/app/common/SoapClientNoBOM.php

<?php
namespace app\common;

use SoapClient;

class SoapClientNoBOM extends SoapClient
{
//    public function __doRequest($request, $location, $action, $version, $one_way = 0)
//    {
//        $response = parent::__doRequest($request, $location, $action, $version, $one_way);
//        // strip away everything but the xml (including removal of BOM)
//        $response = preg_replace('#^.*(<\?xml.*>)[^>]*$#s', '$1', $response);
//        // also remove unit separator
//        $response = str_replace("\x1f", '', $response);
//        return $response;
//    }
}