php file character encoding, mysql database character encoding, special characters

I've a mysql db with some special characters, an input
form, some php
pages.

• In my
  first php page (requestPage) I have the input
  form.




• This page sends (through GET) a
  parameter to an other php page
  (ResultsPage).




• At last this php page
  (ResultsPage) send a query with the parameter to the dbms and shows
  results.

/>

RequestPage is encoded as utf-8
through

• meta
  http-equiv="Content-Type" content="text/html;
  charset=utf-8

ResultsPage
is encoded as utf-8
through

• meta
  http-equiv="Content-Type" content="text/html;
  charset=utf-8



• header('Content-type: text/html;
  charset=utf-8');

The
database and its tables are encoded as
utf8_general_ci.

/>

Now, for
instance:

• if I
  put in the form of RequestPage the word "Cantu", the resultsPage executes the query and
  show me every entry of the DB with the word "Cantù" and for me its
  OK.


• If I put in the form of RequestPage the word "Cantù",
  the resultsPage executes the query and show me no rows but I want to see the rows with
  the word "Cantù"!

Any
suggestion?