Please help me in my Shopping Cart

 

 

<?php
include("includes/db.php");
include("includes/functions.php");

if($_REQUEST['command']=='add' && $_REQUEST['productid']>0){ <<Error
$pid=$_REQUEST['productid'];
addtocart($pid,1);
header("location:shoppingcart.php");
exit();
}

?>

 

 

 

 

 

 

 

 

<?php
include("includes/db.php");
include("includes/functions.php");

if($_REQUEST['command']=='delete' && $_REQUEST['pid']>0){ <<<Error
remove_product($_REQUEST['pid']);
}
else if($_REQUEST['command']=='clear'){ <<<<Error
unset($_SESSION['cart']);
}
else if($_REQUEST['command']=='update'){ <<<<Error
$max=count($_SESSION['cart']);
for($i=0;$i<$max;$i++){
$pid=$_SESSION['cart'][$i]['productid'];
$q=intval($_REQUEST['product'.$pid]);
if($q>0 && $q<=999){
$_SESSION['cart'][$i]['qty']=$q;
}
else{
$msg='Some proudcts not updated!, quantity must be a number between 1 and 999';
}
}
}

?>