Place a title in or above a Google Map marker

Using the code provided in this answer:
https://www.experts-exchange.com/questions/27384850/Plot-multiple-points-on-a-Google-Map-from-addresses-pulled-from-a-database.html

I would like to place a bubble above the marker, preferably on mouseover, that showed the location Title, Address and phone number:

$x->setMarker("THE WHITE HOUSE", 'red', 'W');

This shows the "W" in the marker, but will only show 1 chracter

Thanks,
Jeff