Well... look at your code now. It's even easier to see now with the syntax highlighting. You tried to open a <?PHP tag inside of an echo()!
Furthermore, arrays (more specifically, items in arrays referenced by indeces) should not simply appear inside a double-quoted string. If they do, they should be wrapped in braces ( {} ). Instead, I usually escape out of the string and concatenate the array in the middle, like so:
echo 'Your name is: ' . $row[0] . '! Hello there.';