On the manual page for the MySQL function "mysql_result", in the first paragraph after the function definition, you'll find the phrase

"..., or the field's table dot field's name (tabledname.fieldname)."

The first error is the stray lowercase "d" in the middle of "tablename".

The second error is grammatical - "field's table dot field's name" has one possession too many.  You could rephrase it to "field's table dot field name".

Sincerely,
BJ