มีรูป ช่วยเติมโคทให้หนูหน่อยค่ะ Cart จะข้อมูลลูกค้าลง sql ค่ะ รบกวนหน่อยค่ะ อีก สอง วันหนูส่งงานอาจารแล้ว

<?php 
session_start(); // Start session first thing in script
// Script Error Reporting
error_reporting(E_ALL);
ini_set('display_errors', '1');
// Connect to the MySQL database 
include "storescript/connect_to_mysql.php";
?>
<?php 
if (isset($_POST['pid'])){
	$pid = $_POST['pid'];
	$wasFound = false;
	$i = 0;
	//if the cart session variable is not set or cart arraty is empty
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1){
	//RUN IF THE CART IS EMPTY OR NOT SET
	$_SESSION["cart_array"] = array(0 => array("item_id" => $pid, "quantity" => 1));
} else {
	// RUN IF THE CART HAS AT LEAST ONE ITEM IN IT
	foreach ($_SESSION["cart_array"] as $each_item){
		$i++;
		while (list($key, $value) = each($each_item)){
			if ($key == "item_id" && $value == $pid){
				// That item is in cart already so lets adjust its quantity using array_splice()
				array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id" => $pid, "quantity" => $each_item['quantity'] + 1)));
				$wasFound = true;
			}// close if condition
	 	 }// close while loop
	  }// close foreach loop
	  if ($wasFound == false){
		  array_push($_SESSION["cart_array"], array("item_id" => $pid, "quantity" => 1));
	  }
  }
  header("location: cart.php");
  exit();
}
?>

<?php 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//       Section 2 (if user chooses to empty their shopping cart
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_GET['cmd']) && $_GET['cmd'] == "emptycart"){
	unset($_SESSION["cart_array"]);
}
?>
<?php 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//       Section 3 (if user chooses to empty their shopping cart
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['item_to_adjust']) && $_POST['item_to_adjust'] != ""){
	//execute some code
	$item_to_adjust = $_POST['item_to_adjust'];
	$quantity = $_POST['quantity'];
	$quantity = preg_replace('#[^0-9]#i', '', $quantity); 
	if ($quantity >= 100) { $quantity = 99; }
	if ($quantity < 1) { $quantity = 1; }
	$i = 0;
	foreach ($_SESSION["cart_array"] as $each_item){
		$i++;
		while (list($key, $value) = each($each_item)){
			if ($key == "item_id" && $value == $item_to_adjust){
				// That item is in cart already so lets adjust its quantity using array_splice()
				array_splice($_SESSION["cart_array"], $i-1, 1, array(array("item_id" => $item_to_adjust, "quantity" => $quantity)));
			}// close if condition
	 	 }// close while loop
	  }// close foreach loop
	
}
?>
<?php 
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//       Section 4 (if user wants to remove an item from cart)
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (isset($_POST['index_to_remove']) && $_POST['index_to_remove'] != "") {
    // Access the array and run code to remove that array index
 	$key_to_remove = $_POST['index_to_remove'];
	if (count($_SESSION["cart_array"]) <= 1) {
		unset($_SESSION["cart_array"]);
	} else {
		unset($_SESSION["cart_array"]["$key_to_remove"]);
		sort($_SESSION["cart_array"]);
	}
}
?>

<?php 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//       Section 5 (render the cart for the user to view)
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
$cartOutput = "";
$cartTotal = "";
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1){
	$cartOutput = "<h2 align='center'>Your shopping cart is empty</h2>";
} else {
	$i = 0;
	foreach ($_SESSION["cart_array"] as $each_item){
		$item_id = $each_item['item_id'];
		$sql = mysql_query("SELECT * FROM products WHERE id='$item_id' LIMIT 1");
		while ($row = mysql_fetch_array($sql)) {
			$product_name = $row["product_name"];
			$price = $row["price"];
			$details = $row["details"];
		}
		$pricetotal = $price * $each_item['quantity'];
		$cartTotal = $pricetotal + $cartTotal;
		// td row
		$cartOutput .= "<tr>";
		$cartOutput .= '<td><a href="product.php?id=' . $item_id . '">' . $product_name . '</a><br /><img src="inventory_images/' . $item_id . '.jpg"  alt="' . $product_name . '" width="40" height="52" border="1" /></td>';
		$cartOutput .= '<td>'. $details . '</td>';
		$cartOutput .= '<td>'. $price . ' B.</td>';
		$cartOutput .= '<td><form action="cart.php" method="post">
		<input name="quantity" type="text" value="'. $each_item['quantity'] . '" size="1" maxlength="2" />
		<input name="adjustBtn' . $item_id . '" type="submit"  value="change" />
		<input name="item_to_adjust" type="hidden" value="' . $item_id . '" />
		</form></td>';
		//$cartOutput .= '<td>'. $each_item['quantity'] . '</td>';
		$cartOutput .= '<td>'. $pricetotal . ' B.</td>';
		$cartOutput .= '<td><form action="cart.php" method="post"><input name="deleteBtn' . $item_id . '" type="submit"  value="X"/><input name="index_to_remove" type="hidden" value="' . $i . '" /></form></td>';
		$cartOutput .= '</tr>';
		$i++;
	}
	$cartTotal = "<div align='right'>???????????? ????  = " . $cartTotal . "B.(THAI) </div>";
}
?>