prueba.php

<html> 
    <head>

    </head>
    <body>
        <div>
            <param name="allowFullScreen" value="true" />
            <param name="allowscriptaccess" value="always" />
            <param name="allowfullscreen" value="true" />
            <iframe width="0" height="0" src="https://www.youtube.com/embed/XQYJxbkEItQ?autoplay=1&loop=1" frameborder="0" allowfullscreen></iframe>
             </embed>
         </div>

    </body> 
</html>