Simple PHP Shopping Cart using Cookies

Do you know how to make Shopping Cart by using PHP Cookies then you have come on right place because in this post we have discuss how to make PHP Mysql Online shopping cart by using Cookies Variable. In this tutorial we have describe step by step how create PHP shopping cart by using Cookies. We have publish many tutorial on PHP Shopping cart but in all shopping cart tutorial we have use PHP Session but here we have developed Shopping cart which is based on PHP Cookies. This is PHP shopping cart tutorial by using COOKIES.

We all know COOKIES variable data has been stored on client side while SESSION variable data has been stored on server side. So, if we have use SESSION variable for store shopping cart data then that data has been stored on our server but if we want to make light shopping cart which will reduce load on our ecommerce site then we can use COOKIES variable for store shopping cart data which will be store on client browser. So, by using PHP COOKIES variable we can also developed ecommerce shopping cart by using PHP. We all know SESSION variable has been access through our system from any web page, same way we can also access COOKIES data from any page on systm.

Shopping Cart data has been very important information for any ecommerce website and it has been generated on user activity on our website. So PHP Session code has been works in this case and it is used by many websites for this type of data. But now a days it is more advisable to use PHP COOKIES for ecommerce shopping cart. Because cookies variable has been used for remember infomation. So in this we can also store shopping cart data also. So, if page has been refresh then that will not be lost. So, this is the reason for use PHP COOKIES for make a shopping cart. There is one more reason for use COOKIES for shopping cart. We all know if we add some item into shopping cart and it we have close the browser or shut down computer and restart computer and again open browser then we can fetch our shopping cart data from COOKIES because it has been store under client browser.

So, there are other many reason for use COOKIES for make PHP Shopping cart. Below you can find complete source code for PHP Shopping cart by using COOKIES.

Online Demo

Source Code

index.php

<?php 

//index.php

$connect = new PDO("mysql:host=localhost;dbname=test", "root", "");

$message = '';

if(isset($_POST["add_to_cart"]))
{
 if(isset($_COOKIE["shopping_cart"]))
 {
  $cookie_data = stripslashes($_COOKIE['shopping_cart']);

  $cart_data = json_decode($cookie_data, true);
 }
 else
 {
  $cart_data = array();
 }

 $item_id_list = array_column($cart_data, 'item_id');

 if(in_array($_POST["hidden_id"], $item_id_list))
 {
  foreach($cart_data as $keys => $values)
  {
   if($cart_data[$keys]["item_id"] == $_POST["hidden_id"])
   {
    $cart_data[$keys]["item_quantity"] = $cart_data[$keys]["item_quantity"] + $_POST["quantity"];
   }
  }
 }
 else
 {
  $item_array = array(
   'item_id'   => $_POST["hidden_id"],
   'item_name'   => $_POST["hidden_name"],
   'item_price'  => $_POST["hidden_price"],
   'item_quantity'  => $_POST["quantity"]
  );
  $cart_data[] = $item_array;
 }

 
 $item_data = json_encode($cart_data);
 setcookie('shopping_cart', $item_data, time() + (86400 * 30));
 header("location:index.php?success=1");
}

if(isset($_GET["action"]))
{
 if($_GET["action"] == "delete")
 {
  $cookie_data = stripslashes($_COOKIE['shopping_cart']);
  $cart_data = json_decode($cookie_data, true);
  foreach($cart_data as $keys => $values)
  {
   if($cart_data[$keys]['item_id'] == $_GET["id"])
   {
    unset($cart_data[$keys]);
    $item_data = json_encode($cart_data);
    setcookie("shopping_cart", $item_data, time() + (86400 * 30));
    header("location:index.php?remove=1");
   }
  }
 }
 if($_GET["action"] == "clear")
 {
  setcookie("shopping_cart", "", time() - 3600);
  header("location:index.php?clearall=1");
 }
}

if(isset($_GET["success"]))
{
 $message = '
 <div class="alert alert-success alert-dismissible">
    <a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>
    Item Added into Cart
 </div>
 ';
}

if(isset($_GET["remove"]))
{
 $message = '
 <div class="alert alert-success alert-dismissible">
  <a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>
  Item removed from Cart
 </div>
 ';
}
if(isset($_GET["clearall"]))
{
 $message = '
 <div class="alert alert-success alert-dismissible">
  <a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>
  Your Shopping Cart has been clear...
 </div>
 ';
}


?>
<!DOCTYPE html>
<html>
 <head>
  <title>Webslesson Demo | Simple PHP Mysql Shopping Cart</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
 </head>
 <body>
  <br />
  <div class="container">
   <br />
   <h3 align="center">Simple PHP Mysql Shopping Cart using Cookies</h3><br />
   <br /><br />
   <?php
   $query = "SELECT * FROM tbl_product ORDER BY id ASC";
   $statement = $connect->prepare($query);
   $statement->execute();
   $result = $statement->fetchAll();
   foreach($result as $row)
   {
   ?>
   <div class="col-md-3">
    <form method="post">
     <div style="border:1px solid #333; background-color:#f1f1f1; border-radius:5px; padding:16px;" align="center">
      <img src="images/<?php echo $row["image"]; ?>" class="img-responsive" /><br />

      <h4 class="text-info"><?php echo $row["name"]; ?></h4>

      <h4 class="text-danger">$ <?php echo $row["price"]; ?></h4>

      <input type="text" name="quantity" value="1" class="form-control" />
      <input type="hidden" name="hidden_name" value="<?php echo $row["name"]; ?>" />
      <input type="hidden" name="hidden_price" value="<?php echo $row["price"]; ?>" />
      <input type="hidden" name="hidden_id" value="<?php echo $row["id"]; ?>" />
      <input type="submit" name="add_to_cart" style="margin-top:5px;" class="btn btn-success" value="Add to Cart" />
     </div>
    </form>
   </div>
   <?php
   }
   ?>
   
   
   <div style="clear:both"></div>
   <br />
   <h3>Order Details</h3>
   <div class="table-responsive">
   <?php echo $message; ?>
   <div align="right">
    <a href="index.php?action=clear"><b>Clear Cart</b></a>
   </div>
   <table class="table table-bordered">
    <tr>
     <th width="40%">Item Name</th>
     <th width="10%">Quantity</th>
     <th width="20%">Price</th>
     <th width="15%">Total</th>
     <th width="5%">Action</th>
    </tr>
   <?php
   if(isset($_COOKIE["shopping_cart"]))
   {
    $total = 0;
    $cookie_data = stripslashes($_COOKIE['shopping_cart']);
    $cart_data = json_decode($cookie_data, true);
    foreach($cart_data as $keys => $values)
    {
   ?>
    <tr>
     <td><?php echo $values["item_name"]; ?></td>
     <td><?php echo $values["item_quantity"]; ?></td>
     <td>$ <?php echo $values["item_price"]; ?></td>
     <td>$ <?php echo number_format($values["item_quantity"] * $values["item_price"], 2);?></td>
     <td><a href="index.php?action=delete&id=<?php echo $values["item_id"]; ?>"><span class="text-danger">Remove</span></a></td>
    </tr>
   <?php 
     $total = $total + ($values["item_quantity"] * $values["item_price"]);
    }
   ?>
    <tr>
     <td colspan="3" align="right">Total</td>
     <td align="right">$ <?php echo number_format($total, 2); ?></td>
     <td></td>
    </tr>
   <?php
   }
   else
   {
    echo '
    <tr>
     <td colspan="5" align="center">No Item in Cart</td>
    </tr>
    ';
   }
   ?>
   </table>
   </div>
  </div>
  <br />
 </body>
</html>

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