[RESOLVED] shopping cart

[benracer]

hi,
why does this only display one item? every thime the add to cart button is pressed it rewrites over the previous...

<? 
session_start();

$qty = $_POST["qty"];
$id = $_POST["id"]; 

if (isset( $_SESSION["cart"] ) ) { 
$_SESSION["cart"] = array(); 
}if(empty($qty) ) { 
$qty = 1;
}

$_SESSION["cart"][$id] = $qty; 

header("location:index.php");  

?> 

[YAOMK]

$_SESSION["cart"][$id]['quantity'] = $qty;

[benracer]

hi,
thanks - now how can i get this to work with your script above...

foreach($_SESSION['cart'] as $id => $qty){  

[YAOMK]

foreach($_SESSION['cart'] as $key => $value)
{
foreach($_SESSION['cart'][$id] as $idd => $qtyy){ 
echo $key.' - '.$qtyy;
}
}

Not sure if you want the item and its quantity, but it is what made sense to me. By the way try not using short tags <? ..... ?> instead use <?php ..... ?>.

[benracer]

hi,
the qty wont pass to the cart page...
i now have this

<?php 
session_start();

$qty = $_POST["qty"];
$id = $_POST["id"]; 

if (isset( $_SESSION["cart"] ) ) { 
$_SESSION["cart"] = array(); 
}if(empty($qty) ) { 
$qty = 1;
}

$_SESSION["cart"][$id]['quantity'] = $qty; 
header("location:index.php");  

?>

now i want to display the items in a cart...

<?php
$con = mysql_connect("");
if (!$con)
  {
    die('Could not connect: ' . mysql_error());
}

mysql_select_db("", $con);

foreach($_SESSION['cart'] as $id => $qty){ 
?>  

<table width="100%" border="0" cellpadding="2" cellspacing="1"><tr><td>
<?php
$result = mysql_query("SELECT * FROM items WHERE id='$id'");
$info = mysql_fetch_array( $result); 
$count=mysql_num_rows($result);
?>
  <table width="100%" border="0" cellspacing="0" cellpadding="3">
   <tr>
     <td align="left" valign="middle" nowrap="NOWRAP"><form id="id" name="id" method="post" action="/cart/remove_item.php" style="display:inline"><input type="image" src="/images/x2.gif" alt="Remove This Item">
       <input name="id" type="hidden" id="id" value="<?php echo $info['id']; ?>" />
     </form>      

	 </td>
     <td align="left" valign="bottom" nowrap="NOWRAP">&nbsp;</td>
     <td width="60" height="60" align="center" valign="middle" nowrap="NOWRAP"><img src="<? echo $info['image']; ?>" alt="<? 
echo "#";
echo $info['code']; 
echo " - ";
echo $info['name']; 
?>" class="cartimage"/></td>
      <td width="100" align="left" valign="middle" nowrap="NOWRAP"><? echo $info['code']; ?></td>
      <td width="90%" align="left" valign="middle"><strong><? echo $info['name']; ?></strong> </td>
      <td width="100" align="left" valign="middle" nowrap="nowrap">
	  <form method="post" action="addtocart.php" style="display:inline">  

          Qty :
          <input name="qty" type="text" value="<? echo $qty ; ?>" size="1" maxlength="3" />
          <input name="id" type="hidden"  value="<? echo $info['id']; ?>"  />
                </form>
        </td>
      <td width="50" align="right" valign="middle" nowrap="nowrap">&pound;<? $tot = $info['price'] * $qty; echo $tot; ?></td>
      </tr>
  </table></td>
</tr></table>
<? 
$sub[]=$tot;
}
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td colspan="3" style="background-image:url(../images/line_1x10.png); background-repeat:repeat-x; width:100%; height:1px"></td>
  </tr>
</table></td>
                  </tr>
                </table>
                  <table width="100%" border="0" align="right" cellpadding="3" cellspacing="0">
                    <tr>
                      <td width="100%" align="right" valign="middle">Subtotal : </td>
                      <td align="right" valign="middle">&nbsp;</td>
                      <td align="right" valign="middle">&pound;<? 
$subtotal = array_sum($sub);
echo number_format($subtotal, 2, '.', ','); 
?></td>
                    </tr>
                    <tr>
                      <td width="100%" align="right" valign="middle">P + P : </td>
                      <td align="right" valign="middle">&nbsp;</td>
                      <td align="right" valign="middle">&pound;2.00</td>
                    </tr>
                    <tr>
                      <td colspan="3" align="right" valign="middle"><table width="100%" border="0" cellspacing="0" cellpadding="0">
              <tr>
                <td colspan="3" style="background-image:url(../images/line_1x10.png); background-repeat:repeat-x; width:100%; height:1px"></td>
              </tr>
            </table></td>
                    </tr>
                    <tr>
                      <td width="100%" align="right" valign="middle"><span class="style27">Total:</span></td>
                      <td align="right" valign="middle">&nbsp;</td>
                      <td align="right" valign="middle" nowrap="nowrap"><span class="style27">&pound;
<?php
$postage = 2.00;
$item_total = array_sum($sub);
$final = $item_total + $postage;
$total_price = number_format($final, 2, '.', ',');  

echo $total_price;
$_SESSION["total"]=$final;
?>

[YAOMK]

you need to use a couple of nested foreach loops to be able to subtract the quantity value as I showed you in my previous post, or at least explicitly get that value, if you echo it from your cart page you will see it is there:

session_start();
echo $_SESSION["cart"][$id]['quantity'];

[benracer]

thank all working apart from how to delete from using the key?

[YAOMK]

what do you mean? what key do you want to delete?

[benracer]

ok,
i will post the id to a page then i would like the array to be searched for the key that matches the id and unset? like this but this searches the values not the keys...

$id=$_POST['id']; 

unset($_SESSION['cart'][array_search($id,$_SESSION['cart'])]); 

[YAOMK]

why not do:

$id=$_POST['id']; 
unset($_SESSION['cart'][$id]); 

For more information checkout the section on array functions in the Php manual.

[benracer]

thanks - OMG that was so simple. just shows that not everything has to be complex to work!