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Ich habe eine sehr einfache E-Commerce-Anwendung erstellt und das ist der gesamte Code für den Warenkorb. Ich habe Probleme, die Funktionen zu erhalten, um den Warenkorb zu aktualisieren, (zum Beispiel, ich füge 1 Produkt in den Warenkorb, dann in den Warenkorb und möchte den bestellten Betrag auf 10 ändern, der Code erlaubt mir derzeit nicht) und um Felder zu löschen, habe ich den Code aber es tut einfach nichts. DankWarenkorb Funktionalität, Aktualisieren und Löschen von Feldern
<?
include("includes/db.php");
include("includes/functions.php");
if($_REQUEST['command']=='delete' && $_REQUEST['pid']>0){
remove_product($_REQUEST['pid']);
}
else if($_REQUEST['command']=='clear'){
unset($_SESSION['cart']);
}
else if($_REQUEST['command']=='update'){
$max=count($_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{
$msg='Some proudcts not updated!, quantity must be a number between 1 and 999';
}
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Shopping Cart</title>
<script language="javascript">
function del(pid){
if(confirm('Do you really mean to delete this item?')){
document.form1.pid.value=pid;
document.form1.command.value='delete';
document.form1.submit();
}
}
function clear_cart(){
if(confirm('This will empty your shopping cart, continue?')){
document.form1.command.value='clear';
document.form1.submit();
}
}
function update_cart(){
document.form1.command.value='update';
document.form1.submit();
}
<div id="login">
<?php
session_start();
// dBase file
include "dbConfig.php";
if ($_GET["op"] == "login")
{
if (!$_POST["username"] || !$_POST["password"])
{
die("You need to provide a username and password.");
}
// Create query
$q = "SELECT * FROM `dbUsers` "
."WHERE `username`='".$_POST["username"]."' "
."AND `password`=PASSWORD('".$_POST["password"]."') "
."LIMIT 1";
// Run mysql query
$r = mysql_query($q);
if ($obj = @mysql_fetch_object($r))
{
// Login good, create session variables
$_SESSION["valid_id"] = $obj->id;
$_SESSION["valid_user"] = $_POST["username"];
$_SESSION["valid_time"] = time();
// Redirect to member page
Header("Location: index.php?p=members");
}
else
{
// Login not successful
die("Sorry, could not log you in. Wrong login information.");
}
}
else
{
//If all went right the Web form appears and users can log in
echo "<form action=\"?p=login&op=login\" method=\"POST\">";
echo "Username: <input name=\"username\" size=\"20\"><br />";
echo "Password: <input type=\"password\" name=\"password\" size=\"20\"><br />";
echo "<input type=\"submit\" value=\"Login\">";
echo "</form>";
}
?>
<li><a href="index.php?p=register">Register</a></li></div>
</ul>
</div>
</script>
</head>
<body>
<form name="form1" method="post">
<input type="hidden" name="pid" />
<input type="hidden" name="command" />
<div style="margin:0px auto; width:550px;" >
<div style="padding-bottom:10px">
<div style="padding-top:50px">
<h1 align="center">Shopping Basket</h1>
<input type="button" value="Continue Shopping" onclick="window.location='index.php?p=products'" />
</div>
<div style="color:#F00"><?=$msg?></div>
<table border="0" cellpadding="5px" cellspacing="1px" style="font-family:Verdana, Geneva, sans-serif; font-size:12px; background-color:#E1E1E1" width="100%">
<?
if(is_array($_SESSION['cart'])){
echo '<tr bgcolor="#FFFFFF" style="font-weight:bold"><td>Serial</td><td>Name</td><td>Price</td><td>Qty</td><td>Amount</td><td>Options</td></tr>';
$max=count($_SESSION['cart']);
for($i=0;$i<$max;$i++){
$pid=$_SESSION['cart'][$i]['productid'];
$q=$_SESSION['cart'][$i]['qty'];
$pname=get_product_name($pid);
if($q==0) continue;
?>
<tr bgcolor="#FFFFFF"><td><?=$i+1?></td><td><?=$pname?></td>
<td>£ <?=get_price($pid)?></td>
<td><input type="text" name="product<?=$pid?>" value="<?=$q?>" maxlength="3" size="2" /></td>
<td>£ <?=get_price($pid)*$q?></td>
<td><a href="javascript:del(<?=$pid?>)">Remove</a></td></tr>
<?
}
?>
<tr><td><b>Order Total + Shipping: £<?=get_order_total() +5.00?></b></td><td colspan="5" align="right"><input type="button" value="Clear Cart" onclick="clear_cart()"><input type="button" value="Update Cart" onclick="update_cart()"><input type="button" value="Place Order" onclick="window.location='index.php?p=billing'"></td></tr>
<?
}
else{
echo "<tr bgColor='#FFFFFF'><td>There are no items in your shopping cart!</td>";
}
?>
</table>
</div>
</form>
</body>
</html>