hello, i'm new to php, can anyone tell me how to fix these problems?
Warning: extract() [function.extract]: First argument should be an array in C:\Program Files\Apache Group\Apache2\test\cart.php on line 57
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in C:\Program Files\Apache Group\Apache2\test\cart.php on line 54
Notice: Undefined variable: products_prodnum in C:\Program Files\Apache Group\Apache2\test\cart.php on line 66
Notice: Undefined variable: products_price etc
Thanks its driving me mad!
################################################## ###########
Here is the code:
<?php
if (!session_id()) {
session_start();
}//connect to the database
$connect = mysql_connect("localhost", "kkkk", "kkkkkk") or
die ("check your server connection.");
mysql_select_db("ecommerce");
?>
<html>
<head>
<title>Here is Your Shopping Cart!</title>
</head>
<body>
<div align="center">
You currently have
<?php
$sessid = session_id();
//display number of products in cart
$query = "SELECT * FROM carttemp WHERE carttemp_sess = '$sessid'";
$results = mysql_query($query)
or die (mysql_query());
$rows = mysql_num_rows($results);
echo $rows;
?>
product(s) in your cart.<br>
<table border="1" align="center" cellpadding="5">
<tr>
<td>Quantity</td>
<td>Item Image</td>
<td>Item Name</td>
<td>Price Each</td>
<td>Extended Price</td>
<td></td>
<td></td>
<?php
$total = 0;
while ($row = mysql_fetch_array($results)) {
echo "<tr>";
extract($row);
$prod = "SELECT * FROM products" .
"WHERE products_prodnum='$carttemp_prodnum'";
$prod2 = mysql_query($prod);
$prod3 = mysql_fetch_array($prod2);
extract ($prod3);
echo "<td>
<form method=\"POST\" action=\"modcart.php?action=change\">
<input type=\"hidden\" name=\"modified_hidden\"
value=\"$carttemp_hidden\">
<input type=\"text\" name=\"modified_quan\" size=\"2\"
value=\"$carttemp_quan\">";
echo "</td>";
echo "<td>";
echo "<a href=\"getprod.php?prodid=" . $products_prodnum . "\">";
echo "THUMBNAIL<br>IMAGE</a></td>";
echo "<td>";
echo "<a href=\"getprod.php?prodid=" . $products_prodnum . "\">";
echo $products_name;
echo "</a></td>";
echo "<td align=\"right\">";
echo $products_price;
echo "</td>";
echo "<td align=\"right\">";
//get extended price
$extprice = number_format($products_price * $carttemp_quan, 2);
echo $extprice;
echo "</td>";
echo "<td>";
echo "<input type=\"submit\" name=\"Submit\"
value=\"Change Qty\">
</form></td>";
echo "<td>";
echo "<form method=\"POST\" action=\"modcart.php?action=delete\">
<input type=\"hidden\" name=\"modified_hidden\"
value=\"$carttemp_hidden\">";
echo "<input type=\"submit\" name=\"Submit\"
value=\"Delete Item\">
</form></td>";
echo "</tr>";
//add extended price to total
$total = $extprice + $total;
}
?>
<tr>
<td colspan=\"4\" align=\"right\">
Your total before shipping is:</td>
<td align=\"right\"> <?php echo number_format($total, 2); ?></td>
<td></td>
<td>
<?php
echo "<form method=\"POST\" action=\"modcart.php?action=empty\">
<input type=\"hidden\" name=\"carttemp_hidden\"
value=\"";
if (isset($carttemp_hidden)) {
echo $carttemp_hidden;
}
echo "\">";
echo "<input type=\"submit\" name=\"Submit\" value=\"Empty Cart\">
</form>";
?>
</td>
</tr>
</table>
<form method="POST" action="checkout.php">
<input type="submit" name="Submit" value="Proceed to Checkout">
</form>
<a href="goodshop.php">Go back to the main page</a>
</div>
</body>
</html>
chapter 15 cart.php Warning: mysql_fetch_array():
