Establezca nombres UTF8
//PDO
$conn->query("SET NAMES utf8");
or
$conn->exec("set names utf8");
//mysqli
mysql_query("set names 'utf8'");
mouaadBch
//PDO
$conn->query("SET NAMES utf8");
or
$conn->exec("set names utf8");
//mysqli
mysql_query("set names 'utf8'");