mysqli_stmt_bind_parammysqli_stmt_bind_param not fully initializing error

[Michael Macgowan]

I am trying to update a table in my database with a single value in my variable, loadID. I am trying to locate the current user ID and put the value in the currentload column of the users table. I am using the stmt procedural coding. My bind statement looks correct but I get the error:

Uncaught Error: mysqli_stmt object is not fully initialized in C:\php\www\loads\includes\assign-inc.php:38 Stack trace: #0 C:\php\www\loads\includes\assign-inc.php(38): mysqli_stmt_bind_param(Object(mysqli_stmt), 'ii', 1000019, 29) #1 {main} thrown in C:\php\www\loads\includes\assign-inc.php on line 38

I get the same error if I replace "ii" with "ss".

My code is as follows:

$userID= $_SESSION['sessionID'];
$sql = "UPDATE users SET currentload = ? WHERE idusers=?";
$stmt = mysqli_stmt_init ($conn);
mysqli_stmt_bind_param ($stmt, "ii", $loadID, $userID);
mysqli_stmt_execute ($stmt);

The error indicates that the $loadID and $userID are correct. I have tried putting single quotes around the column names but I get the same error. The connection is good as I create the $loadID by an execute to the loads table in lines above the listed code.