Thanks so much for helping out. I'm trying to set this for a non-profit I volunteer with. The program is based on four scripts:
phpCart_shop.php is where you select your items
phpCart_basket.php displays the results
functions_cart.php is the middle man
phpCart_manage is a middle man but I'm not sure what it does?
Here is the code for each one, in order
[PHP]<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<td width="306"><a href="phpCart_basket.php">View Avionics Stack</a></td>
<?
include "functions_cart.php";
db_connect();
$sel_products = mysql_query("SELECT * FROM $mysql_tablename ORDER BY id");
?>
<table width="100%" border="1" cellspacing="0" cellpadding="5">
<tr><td> </td>
<td><strong>Product</strong></td>
<td><strong>Picurl</strong></td>
<td><strong>Price</strong></td>
</tr>
<?
while ($item = mysql_fetch_array($sel_products)) {
echo "<tr>";
echo "<td><a href=phpCart_manage.php?act=add&pid=".$item["id"].">Add</a></td>";
echo "<td>".$item["product"]."</td>";
echo '<td><img src="'.$item["picurl"].'" width="auto" height="auto" alt="' . $item["product"] . ' Image"></td>';
echo "<td>".$item["price"]."</td>";
echo "</tr>";
}
?>
</table>
</body>
</html>[/PHP]
[PHP]<?
ob_start();
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>phpCart</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="phpCart_style.css" rel="stylesheet" type="text/css">
</head>
<body>
<form name="update" method="post" action="phpCart_manage.php">
<table width="50%" border="0" cellspacing="10" cellpadding="0">
<tr bgcolor="#EEEEEE">
<td width="10%" class="bottomline"> </td>
<td width="5%" class="bottomline"><strong>Qty</strong></td>
<td width="5%" class="bottomline"><strong>LCode</strong></td>
<td width="50%" class="bottomline"><strong>Product</strong></td>
<td width="10%" class="bottomline"><strong>Image</strong></td>
<td width="10%" class="bottomline"><strong>Price</strong></td>
<td width="10%" class="bottomline"><strong>Line Total </strong></td>
</tr>
<?
include "functions_cart.php";
$totalvalue = 0;
session_start();
// If no sessions has been started $_SESSION["cart"] equals null, thus showing the message no items.
if (!isset($_SESSION["cart"])) {
$_SESSION["cart"] = NULL;
}
if (validate() == TRUE && $_SESSION["cart"] != NULL) {
foreach ($_SESSION["cart"] as $key => $session_data) {
list($ses_id, $ses_quan) = $session_data;
// call database connect function
db_connect();
$sel_products = mysql_query("SELECT * FROM $mysql_tablename WHERE id=".$ses_id."");
$item = mysql_fetch_array($sel_products);
$totalvalue = $totalvalue + ($item["price"]*$ses_quan);
$subtotal = ($item["price"]*$ses_quan);
?>
<tr>
<td class="dividingborder"><a href="<? echo "phpCart_manage.php?act=del&pid=".$ses_id; ?>"><img src="img/icon_del.gif" width="13" height="13" border="0"></a></td>
<td class="dividingborder"><input name="newquan[]" type="text" id="newquan[]4" value="<? echo $ses_quan; ?>" size="5" maxlength="4">
<input name="eid[]" type="hidden" id="eid[]" value="<? echo $ses_id; ?>"></td>
<td class="dividingborder"><? echo $item["code"]; ?></td>
<td class="dividingborder"><? echo $item["product"]; ?></td>
<td class="dividingborder"><? echo '<img src="'.$item["picurl"].'" width="auto" height="auto" alt="' . $item["product"] . ' Image"'; ?></td>
<td class="dividingborder"><? echo $cur_symbol."".number_format($item["price"], 2, '.', ''); ?></td>
<td class="dividingborder"><? echo $cur_symbol."".number_format($subtotal, 2, '.', ''); ?></td>
</tr>
<?
} // end foreach loop
} elseif ($_SESSION["cart"] == NULL) {
echo "<td colspan=\"5\"><center><p>Your basket is currently empty.</p></center></td>";
} else {
echo "<td colspan=\"5\"><center><p>Unknown Error.</p></center></td>";
}
?>
<tr>
<td> <img src="img/icon_del.gif" width="13" height="13"> - delete</td>
<td><? if ($_SESSION["cart"] != NULL) { echo "<input name=\"UpdateChg\" type=\"submit\" id=\"UpdateChg\" value=\"Update\">"; } ?></td>
<td><a href="phpCart_shop.php">Add More Avionics</a></td>
<td><strong>Stack Total</strong></td>
<td><? echo $cur_symbol."".number_format($totalvalue, 2, '.', ''); ?></td>
</tr>
</table>
</form>
</body>
</html>
<?
ob_end_flush();
?>
[/PHP]
[PHP]<?
$mysql_server = "localhost";
$mysql_username = "flying";
$mysql_pwd = "copole";
$mysql_dbname = "flying_phpcart";
$mysql_tablename = "phpcart_products";
$cur_symbol = "$";
// database connect function
function db_connect () {
global $mysql_server, $mysql_username, $mysql_pwd, $mysql_dbname;
$db = mysql_connect($mysql_server, $mysql_username, $mysql_pwd, false, 128) or die("Problem connecting");
mysql_select_db($mysql_dbname,$db) or die("Problem selecting database");
}
// generate random string for cookie and session
function setstp () {
settype($str,"string");
// generate random number
for ($i=0;$i<20;$i++) {
$str .= chr (rand (1, 255));
}
// encode string to 40 characters.
$sha = sha1 ($str);
// set cookie with value and set session with the same value.
setcookie ("SESSSEC", $sha, NULL);
$_SESSION["CookieChk"]['SESSSEC'] = $sha;
}
// add item to cart
function add_item_to_cart($id,$quantity) {
// set cookie and store value in session
setstp();
// call database connect function
db_connect();
// get product id from database
global $mysql_tablename;
$sel_products = mysql_query("SELECT * FROM $mysql_tablename WHERE id=".$id."");
$item = mysql_fetch_array($sel_products);
// returns the number of rows in a result, if 1 item exists if 0 item doesn't exists.
$num_rows = mysql_num_rows($sel_products);
// if item exists then add item to cart
if ($num_rows >= 1) {
session_regenerate_id(TRUE);
$_SESSION["cart"][$id][0] = $item["id"];
$_SESSION["cart"][$id][1] = $quantity;
header ("location:".$_SERVER['HTTP_REFERER']);
}
}
// check cookie and session and then show cart
function validate() {
if (!isset($_COOKIE['SESSSEC'])) {
$valid = FALSE;
// probable attempt at Session Fixation, you should probably log this
} elseif (!isset($_SESSION["CookieChk"]['SESSSEC'])) {
$valid = FALSE;
// umm, this shouldn't occur, but yeah, do whatever you want, maybe log an error or something, probably not needed except to notice bugs in your app....
} elseif ($_COOKIE["SESSSEC"] == $_SESSION["CookieChk"]['SESSSEC']) {
$valid = TRUE;
setstp();
} else {
$valid = FALSE;
// very Proably attempt at session hijacking, because while both items exist they don't match, definately log this
}
return $valid;
}
// delete item from cart
function del_item($id) {
// call database connect function
db_connect();
global $mysql_tablename;
$sel_products = mysql_query("SELECT * FROM $mysql_tablename WHERE id=".$id."");
$item = mysql_fetch_array($sel_products);
session_start();
// remove item from cart
session_regenerate_id();
unset($_SESSION["cart"][$item["id"]]);
header ("location:".$_SERVER['HTTP_REFERER']);
}
?>
[/PHP]
[PHP]<?
ob_start();
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>phpCart</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="phpCart_style.css" rel="stylesheet" type="text/css">
<?
// UPDATE BASKET QUANTITY
if (isset($_POST["UpdateChg"])) {
session_start();
include "functions_cart.php";
$i = 0;
$size = count($_POST["eid"]);
for ($i = 0; $i <= $size-1; $i++) {
// call remove bad characters function
$badsymbols = array(" ","-","+","*","/",".");
$_POST["newquan"][$i] = str_replace($badsymbols,"", $_POST["newquan"][$i]);
if (is_numeric($_POST["newquan"][$i])) {
// if any quantity's equal 0 then remove from cart
if ($_POST["newquan"][$i] == 0) {
unset($_SESSION["cart"][$_POST["eid"][$i]]);
}
// update quantity in cart.
if (array_key_exists($_POST["eid"][$i], $_SESSION["cart"])) {
add_item_to_cart($_POST["eid"][$i], $_POST["newquan"][$i]);
}
} // END IF NUMERIC
}
header ("location:".$_SERVER['HTTP_REFERER']);
} // END BASKET QUANTITY
// TEXT LINKS
if (isset($_GET["act"])) {
// ADD ITEM!
if ($_GET["act"] == "add") {
session_start();
include "functions_cart.php";
//unserialize($_SESSION["cart"]);
if (!isset($_SESSION["cart"])) {
// add first item
add_item_to_cart($_GET["pid"],1);
} else if (array_key_exists($_GET["pid"], $_SESSION["cart"])) {
// add 1 to quantity if item in cart already
add_item_to_cart($_GET["pid"],++$_SESSION["cart"][$_GET["pid"]][1]);
} else {
// add any other items after first item
add_item_to_cart($_GET["pid"],1);
}
}
// DELETE ITEM!
if ($_GET["act"] == "del") {
include "functions_cart.php";
del_item($_GET["pid"]);
}
} // END ISSET
?>
</body>
</html>
<?
ob_end_flush();
?>
[/PHP]
