Drupal 6 user password import to Drupal 7

Question

I don\'t really need to import any data into my D7 build other than users. I have (by SQL) imported my user data however, the D7 password encryption method is now different.

Answer 1

I don't have enough points to add a comment, but I've made several refinements to hross' answer (and submitted a draft update).

Here's an improved script with documentation and the ability to specify a non-default users table for those doing manual Drupal 6 to 7 merges. It also incorporates jpb's checking.

 10 ORDER BY uid", 0, $count);
  foreach ($result as $account) {
    $has_rows = TRUE;
    if (substr($account->pass, 0, 1) != 'U') {
      echo "updating account: " . $account->uid . " \r\n";
      $new_hash = user_hash_password($account->pass, $hash_count_log2);
      if ($new_hash) {
        // Indicate an updated password.
        $new_hash  = 'U' . $new_hash;
        db_update($databasename)
          ->fields(array('pass' => $new_hash))
          ->condition('uid', $account->uid)
          ->execute();
      }
    }
  }
  echo "Done.";
?>