I think that (the title) is the problem I am having. I set up a MySQL connection, I read an XML file, and then I insert those values into a table by looping through the elements. The problem is, instead of inserting only 1 record, sometimes I insert 2 or 3 or 4. It seems to depend on the previous values I have read. I think I am reinitializing the variables, but I guess I am missing something -- hopefully something simple.

Here is my code. I originally had about 20 columns, but I shortened the included version to make it easier to read.

$ctr = 0;
$sql =  "insert into csd (id,type,nickname,hostname,username,password) ".
        "values (?,?,?,?,?,?)";
$cur = $db->prepare($sql);

for ($ctr = 0; $ctr < $expected_count; $ctr++) {
    unset($bind_vars,$dat);

    $lbl = "csd_{$ctr}";

    $dat['type']      = (string) $ref->itm->csds->$lbl->type;
    $dat['nickname']  = (string) $ref->itm->csds->$lbl->nickname;
    $dat['hostname']  = (string) $ref->itm->csds->$lbl->hostname;
    $dat['username']  = (string) $ref->itm->csds->$lbl->username;
    $dat['password']  = (string) $ref->itm->csds->$lbl->password;

    $bind_vars = array( $id,$dat['$type'], $dat['$nickname'], $dat['$hostname'], 
                        $dat['$username'], $dat['$password']);
    print_r ($bind_vars);
    $res = $db->execute($cur, $bind_vars);
}

P.S. I also tagged this SimpleXML because that is how I am reading the file, though that code is not included above. It looks like this:

$ref = simplexml_load_file($file);

UPDATE: I've changed the code around as per suggestions, and now it is not always the same pattern, but it is equally broken. When I display the bind array before inserting, it looks like this. Note that I also count the rows before and after, so there are 0 rows, then I insert 1, then there are 2:

0 CSDs on that ITEM now.
Array
(
    [0] => 2
    [1] => 0
    [2] =>
    [3] => X
    [4] => XYZ
    [5] =>
    [6] =>
    [7] =>
    [8] => audio
    [9] =>
    [10] => 192.168.0.50
    [11] => 192.168.0.3
    [12] => 255.255.255.0
    [13] => 255.255.255.0
    [14] =>
    [15] =>
    [16] =>
    [17] => 21
    [18] => 5
    [19] => Y
    [20] => /dir
)
2 CSDs on that ITEM now.