Using PHP mysqli_stmt_bind_param with Variable Arguments

I need some help figuring out how to do something with the "mysqli_stmt_bind_param" process. I'm trying to create a function that allows me to do a database insert. I want this function to have the flexibility of being able to pass a variable amount of variables.

The approach I'm taking is to declare the variables as an array that is passed through the function. I want the function to split out the array and create the appropriate mysqli_stmt_bind_param arguments.  Here's what I have so far.  (Note some of this is abbreviated for clarity).

<?php

function refValues($arr){ 
    if (strnatcmp(phpversion(),'5.3') >= 0) //Reference is required for PHP 5.3+ 
    { 
        $refs = array(); 
        foreach($arr as $key => $value) 
            $refs[$key] = &$arr[$key]; 
        return $refs; 
    } 
    return $arr; 
} 

function doInsert($query, $types, $values) 
{
	DEFINE ('DB_HOST', $stngs->dbServer);
	DEFINE ('DB_USER', $stngs->dbUsername);
	DEFINE ('DB_PASSWORD', $stngs->dbPassword);
	DEFINE ('DB_NAME', $stngs->dbDatabase);

	$dbc = @mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);  // the constants are 

        $stmt = mysqli_prepare($dbc, $query);
        # if I print out the statment I get this so I know the prepare is working
        # mysqli_stmt Object ( [affected_rows] => 0 [insert_id] => 0 [num_rows] => 0 [param_count] => 3 [field_count] => 0 [errno] => 0 [error] => [error_list] => Array ( ) [sqlstate] => 00000 [id] => 1 )
        
        call_user_func_array(array($stmt, "mysqli_stmt_bind_param"),refValues($values));

	mysqli_stmt_execute($stmt);
        $affected_rows = mysqli_stmt_affected_rows($stmt);

       die ("Arrected Rows are: [".$affected_rows."]");

} 

// this is an example of an insert statement with three values

$query = "INSERT INTO roger (`timestamp`, `key`, `value`) VALUES (?, ?, ?)";  // the bind query statment
$types = "iss";  // the types
$values = array("timestamp" => mktime(), "key" => "toast", "value" => date("Y-m-d"));

doInsert($query, $types, $values);

Select allOpen in new window

When I run this script, I get the DB connected okay (I tested with a select that worked) but I get this error message.

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class 'mysqli_stmt' does not have a method 'mysqli_stmt_bind_param'

And the affected rows is [0] with no entry into the database.

What am I doing wrong?