Спарсить XML

$url = 'test.xml';  
$rss = simplexml_load_file($url);  
 
foreach ($rss->shop->offers->offer as $item) {
 
$categoryId = $item->categoryId;
$currencyId=  $item->currencyId;
$name =  addslashes($item->name);
 
}

<?php
$xml = <<<E
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE yml_catalog SYSTEM "shops.dtd">
<yml_catalog date="2015-03-28 18:46">
<shop><name>test</name>
        <company>test.com</company>
        <url>http://www.test.com/</url>
        <currencies>
            <currency id="RUR" rate="1"/>
        </currencies>
        <categories>
            <category id="000000003">Женская одежда</category>
            <category id="000000029">Мужская одежда</category>
        </categories>
<offers>
<offer available="true" type="vendor.model" id="111745">
<categoryId>000000007</categoryId><currencyId>RUR</currencyId><name>Водолазка  XXL 036</name>
</offer>
<offer available="true" type="vendor.model" id="111746">
<categoryId>000000007</categoryId><currencyId>RUR</currencyId><name>Водолазка  XXL 037</name>
</offer>
</offers>
</shop>
</yml_catalog>
E;
$xml = simplexml_load_string($xml);  
 
foreach ($xml->shop->offers->offer as $item)
    echo "id = ".$item->attributes()->id."</br>\n";