How many professional basketball teams did Shaquille O'Neal play for?

I do not know to much about basketball because I do not watch it to much. But I know O’Neal is such a nice person. He gives allot. I know his clothes are so well liked. Many children look up to him because they are bigger like him. His clothes are so nice and kids love that they can get them.. I know many people who have bigger shoe sizes and kids like that they can get shoes.