<?php
function cdStore($cd,$quant) {
  $price=array('cd1'=>12, 'cd2'=>9, 'cd3'=>11, 'cd4'=>15, 'cd5'=>20);
  $name=array('cd1'=>'Led Zepplin', 'cd2'=>'Buddy Miller', 'cd3'=>'AC/DC', 'cd4'=>'Neko Case', 'cd5'=>'Motorhead');
  $stock=array('cd1'=>8, 'cd2'=>10, 'cd3'=>6, 'cd4'=>2, 'cd5'=>4);
  if ($quant <= $stock[$cd])
       $result="In Stock - ".$quant." ".$name[$cd]."@$".$price[$cd]." - Price= $" . $quant*$price[$cd];
       else $result="Sorry, Out of Stock.";
  return array('invoice'=>$result);
}
?>