Description:
------------
I have a Mysql database with UTF-8 encoding and i am posting data from web also in UTF-8 encoding. 
The slovak character "č" is messed up - the results from the database are differ from the input. All other special characters are OK.

Reproduce code:
---------------
mysql> create table t (x varchar(64)) character set utf8;
Query OK, 0 rows affected (0.21 sec)

mysql>

<script language="php">

header("Content-Type: text/html;charset=UTF-8");

$l_conn = mysql_connect("localhost", "formawww", "formawww");
mysql_select_db("forma", $l_conn);


echo "<form name=\"test\" method=\"POST\" action=\"test.php\">";
echo "<input type=\"text\" name=\"str\">";
echo "<input type=\"hidden\" name=\"insert\" value=\"1\">";
echo "<input type=\"submit\"></form>";


if (isset($_REQUEST["insert"]))
{
    $l_insert = mysql_query ("insert into t values ('" . $_REQUEST["str"]."')");
}



$l_select = mysql_query("select * from t");

echo "------------------<br>";
while ($l_row = mysql_fetch_assoc($l_select))
{
  echo $l_row["x"] . "<br>\n";
}


</script>

Expected result:
----------------
enter the following values into the form 

&#318;?&#269;&#357;????????

and the following output is produces

&#318;?&#319;&#357;????????

the third character is corrupted.