Question

Possible Duplicate:
(mysql, php) How to get auto_increment field value before inserting data?

I have this table which is for users. the user_id is an auto increment field. I’m using PDO to connect and execute to the database. How I can get the user_id value after adding a new user?

I’ve tried to user mysql_insert_id(), but nothing happened.

    $sql = "INSERT INTO  `users` (`user_name` ,`user_password` ,) VALUES (?, ?)";

    $db = new DB; // create Database handler.       
    if($db->execute($sql,$this->name,$this->password))
    {
        $this->permission = new permission(mysql_insert_id()); // <--- HERE
        $this->permission->reset();
        $this->permission->insert();
    }
    return true;

because the new class will be constructed base on a user_id value. Thank you in advance.

Answer 1

mysql_insert_id() is not PDO. Have you tried $db->lastInsertId() after $db->execute?