shuffle a deck of cards

<?
$cards = array("ah", "ac", "ad", "as",
               "2h", "2c", "2d", "2s",
               "3h", "3c", "3d", "3s",
               "4h", "4c", "4d", "4s",
               "5h", "5c", "5d", "5s",
               "6h", "6c", "6d", "6s",
               "7h", "7c", "7d", "7s",
               "8h", "8c", "8d", "8s",
               "9h", "9c", "9d", "9s",
               "th", "tc", "td", "ts",
               "jh", "jc", "jd", "js",
               "qh", "qc", "qd", "qs",
               "kh", "kc", "kd", "ks");
srand(time());
  for($i = 0; $i < 52; $i++)
{
   $count = count($cards);
   $random = (rand()%$count);
      if($cards[$random] == "")
      {
         $i--;
      }
      else
      {
         $deck[] = $cards[$random];
         $cards[$random] = "";
      }
}
 
srand(time());
$starting_point = (rand()%51);
print("Starting point for cut cards is: $starting_point<p>");
 
// display shuffled cards
  for ($index = 0; $index < 52; $index++)
{
   if ($starting_point == 52) { $starting_point = 0; }
   print("Uncut Point: <strong>$deck[$index]</strong> ");
   print("Starting Point: <strong>$deck[$starting_point]</strong><br>");
   $starting_point++;
  }
?>