reading multiple xml file from a folder and printing some attribute using PHP

I am trying to read multiple xml file from a folder and want to get tag attribute for further processing. So far i have tried many available examples but no luck so far.

below is my code, any help will be appreciated..! Thanks..!

 foreach (glob("unzip_temp/other/newfolder/*.xml") as $filename) {
    $xml_file = file_get_contents($filename, FILE_TEXT);

    $xml = simplexml_load_file($xml_file);
    foreach ($xml->tag1 as $fileinfo) {

        $name = $fileinfo['Name'];
        $language = $fileinfo['Language'];
        $creator = $fileinfo['Creator'];
        echo "<li> $name ,$language ,$creator";
    }

below is the part of xml file that i want to read:

<?xml version="1.0" encoding="utf-16"?>
<tag1 xmlns:xsd="http://ift.tt/tphNwY" xmlns:xsi="http://ift.tt/ra1lAU" Name="Bethanien_Befunder_CTKolon"  Language="other" Type="Simple" Creator="ADMINISTRATOR" IsMultiSelect="false" IsFloatingPickList="false" IsPhraseGenerated="false">