How to use a xml sheet in wordpress

i'm brazilian, I am new to creating websites , I made a page in php that works well using a script to load data from XML file.

This script loads - a Video , the video title and description every time you click a link from this xml file.

But when I went up the wordpress that does not work , the DIVS are empty as if it does not recognize the XML loaded by the GET function.

I wonder if it is to resolve this error , thank you.

via Chebli Mohamed