Cardservice lphp won't create array

You'll need to be generally familiar with Cardservice's lphp class to answer this one: I'm properly setting the $myorder array (as verified by outputting it with a while loop) - but upon executing the next step: $charge_result = $mylphp->curl_process($myorder); I then attempt to display the full results with this: while (list($key, $value) = each($charge_result)) { echo htmlspecialchars($key) . " = " . htmlspecialchars($value) . "<BR>\n"; } But I get: Warning: Variable passed to each() is not an array or object It appears that somehow lphp is not creating the results array that it's supposed to. I am properly including the lphp.php file, and I've verified that curl is turned on. Anyone have a clue, or is there any more info I need to provide? TIA, - Brian