<?php
use Zend\Xml2Json\Xml2Json;
use Zend\Debug\Debug;
$xmlStr = file_get_contents(__DIR__ . '/city.xml');
$json = Xml2Json::fromXml($xmlStr);
echo Debug::dump($xmlStr, null, false);
echo $json;
string(296) "<?xml version="1.0" encoding="UTF-8"?>{"List":{"City":[{"CityId":"1","Name":"South Park"},{"CityId":"2","Name":"Springfield"},{"CityId":"3","Name":"Quahog"}]}}
<List>
<City>
<CityId>1</CityId>
<Name>South Park</Name>
</City>
<City>
<CityId>2</CityId>
<Name>Springfield</Name>
</City>
<City>
<CityId>3</CityId>
<Name>Quahog</Name>
</City>
</List>"