I had this previously in my normal mysql_* connection:
mysql_set_charset(\"utf8\",$link);
mysql_query(\"SET NAMES \'UTF8\'\");
Do I need it
You'll have it in your connection string like:
"mysql:host=$host;dbname=$db;charset=utf8"
HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this:
$dbh = new PDO("mysql:$connstr", $user, $password);
$dbh->exec("set names utf8");