public static function URLsToArray($sitelocation)
 {
     $arrayindexes = \SimpleSitemapGenerator\XMLTools::createArray(file_get_contents($sitelocation));
     //if only one element, a trick to have all elements in the same level
     if (isset($arrayindexes["urlset"]["url"]["loc"])) {
         return array($arrayindexes["urlset"]["url"]);
     } else {
         return $arrayindexes["urlset"]["url"];
     }
 }
 public static function indexToArray($filepath)
 {
     if (file_exists($filepath)) {
         $arrayindexes = \SimpleSitemapGenerator\XMLTools::createArray(file_get_contents($filepath));
         //if only one element
         if (isset($arrayindexes["sitemapindex"]["sitemap"]["loc"])) {
             return array($arrayindexes["sitemapindex"]["sitemap"]);
         } else {
             return $arrayindexes["sitemapindex"]["sitemap"];
         }
     } else {
         return array();
     }
 }