PDO DBLIB SQL 服务器 Unicode 问题

Question

When I insert data to SQL Server, latin letters are added as interrogative characters.

Tried lots of ways, but none was helped. Cannot use N prefix with pdo, when use placeholders. Any working ways to set Unicode in pdo?

I tried:

1. ini_set('default_charset', 'utf-8');
2. $dsn = "dblib:version=7.0;charset=UTF-8;host={$params['host']};dbname={$params['dbname']}";
3. $db->exec("set names utf8");

Answer 1

Solved!

Instead of placeholders in query write question marks (?) and N prefix will work.

Example:

$sql = "UPDATE [dbo].[myTable] SET name=N?, xml_data=? WHERE id=?";
$result = $db->prepare($sql);
return $result->execute(array($name, $xml, $id));