Problem with session variable

[Diether]

Hi guys, this codes works perfectly to me, except that i would like to add pricetotal in session variable. my problem is pricetotal does not display values when i use print_r.

 

Heres the output when i use print_r to display session variable:

Array ( [0] => Array ( [item_id] => 15 [quantity] => 56 [pricetotal] => ) )

 

It should be like this:

Array ( [0] => Array ( [item_id] => 15 [quantity] => 56 [pricetotal] => 5500) )

 

please help me to fix my problem: thanks

 

the code use:

<?php

//Section 1 (if user attempts to add something to the cart from the product page)
if (isset($_POST['pid'])) {
   $pid = $_POST['pid'];
   $wasFound = false;
   $i = 0;
   // If the cart session variable is not set or cart array is empty
   if (!isset($_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,"pricetotal" => $pricetotal));
   } else {
       // RUN IF THE CART HAS AT LEAST ONE ITEM IN IT
       foreach ($_SESSION["cart_array"] as $each_item) {
      	   $i++;
      	   while (list($key, $value) = each($each_item)) {
                 if ($key == "item_id" && $value == $pid) {
                     // That item is in cart already so let's adjust its quantity using array_splice()
                     array_splice($_SESSION["cart_array"], $i-1, 1,
                     array(array("item_id" => $pid, "quantity" => $each_item['quantity'] + 1,"pricetotal" => $pricetotal)));
                     $wasFound = true;                      
                 } // close if condition
      	   } // close while loop
  	    } // close foreach loop
          if ($wasFound == false) {
              array_push($_SESSION["cart_array"], array("item_id" => $pid, "quantity" => 1, "pricetotal" => $pricetotal));
          }
   }

   redirect_to("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 adjust item quantity)
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', '', $quantity); // filter everything but numbers
   if ($quantity >= 100) { $quantity = 99; }
   if ($quantity < 1) { $quantity = 1; }
   if ($quantity == "") { $quantity = 1; }
   $i = 0;
   foreach ($_SESSION["cart_array"] as $each_item) {
      	   $i++;
      	   while (list($key, $value) = each($each_item)) {
                 if ($key == "item_id" && $value == $item_to_adjust) {
                     // That item is in cart already so let's adjust its quantity using array_splice()
                     array_splice($_SESSION["cart_array"], $i-1, 1,
                     array(array("item_id" => $item_to_adjust, "quantity" => $quantity,"pricetotal" => $pricetotal)));
                 } // 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 on the page)

$pp_checkout_btn ="";
$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'];

       $sql = mysql_query("SELECT * FROM product WHERE id='$item_id' LIMIT 1");
       while ($row = mysql_fetch_array($sql)) {
           $product_name = $row["name"];
           $price = $row["price"];
           $details = $row["details"];
       }

       $pricetotal = $price * $each_item['quantity'];
       $cartTotal = $pricetotal + $cartTotal;
    $pricetotal = number_format($pricetotal,2);
       // Dynamic Checkout Btn Assembly
       $x = $i + 1;
   $pp_checkout_btn .= '<input type="hidden" name="item_name_' . $x . '" value="' . $product_name . '">

    <input type="hidden" name="amount_' . $x . '" value="' . $price . '">
    <input type="hidden" name="quantity_' . $x . '" value="' . $each_item['quantity'] . '">  ';
       // Create the product array variable
       // Dynamic table row assembly
       $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>Php ' . $price . '</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="Update" />
       <input name="item_to_adjust" type="hidden" value="' . $item_id . '" />
       </form></td>';
       //$cartOutput .= '<td>' . $each_item['quantity'] . '</td>';
       $cartOutput .= '<td>' . $pricetotal . '</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++;
   }
   $cartTotal = number_format($cartTotal,2);
   $cartTotal = "<div style='font-size:18px; margin-top:12px;' align='right'>Cart Total : ".$cartTotal." Php</div>";

   }

?>

[Diether]

hi Guys, Pls give me an example code so that $pricetotal will not be null? just an example code so that i will have the idea on how to fix that. thanks

[Jessica]

Echo it at each point you use it, and find out where your problem is.