Problem with variable declaration in switch statement

Posted on 16th Feb 2014 07:03 pm by admin

Hello, I am having some trouble assigning a value to a variable inside a switch statement. What I am trying to do here is trip an error if the user has already added an item in the shopping cart. The While and Foreach loops work perfectly fine. The problem is that the value of variable $error does not get passed outside of the case. As a result, I cannot get the error message to display. I really need to get this to work and any help is appreciated. The code looks something like this:

Code: switch ($action) {
case 'add' :
{
if ($_SESSION['CartID'] == "")
{

$query = 'INSERT INTO ShopCart( UserID )VALUES("' . $UserID . '")';
mysql_query($query, $db) or die(mysql_error($db));

$Shop = 'SELECT ShopCartID FROM ShopCart WHERE UserID = "' . $UserID . '" ORDER BY ShopCartID ASC LIMIT 1';
$Cart = mysql_query($Shop);
$ShopCart = mysql_fetch_row($Cart);
$_SESSION['CartID'] = $ShopCart[0];
}
$query = 'SELECT ProductID FROM ShopCartLine WHERE ShopCartID = "' . $_SESSION['CartID'] . '"';
$result=mysql_query($query, $db) or die(mysql_error($db));

//$row = mysql_fetch_row( $result );
while($var = mysql_fetch_array($result))
{
foreach ($var as $i) {
if ($i == $ProductID) {
$error = 1; //TRIP THE ERROR HERE!
echo "<script type='text/javascript'>window.top.location='http://amarcy2.db-class.ids.uic.edu/shopcart.php';</script>";
}
}
}
}


The code being used to display the error message is as follows:

Code:
if ($error == 1) {
echo '<p>You already have this item in your basket!</p>';
}

Your Answer:

Login to answer

Other forums

need help with mail()
hi i want to send an email with attaching pdf file using php. i have the following script but the pr

Simple Variable Question
Hi everyone.... again,

I am really getting into php still. Learning more every day. I love it

InternetOpenUrl() Invalid cert
Hi all,

Does anyone know how to prevent calls to InternetOpenUrl() from failing with erro

Preventing blank or already entered values
Im trying to learn how to place a read file line by line and prevent duplicate entries and also BLAN

regex for quoted text within a string
I am still getting the hang of regex expressions, but I cant seem to figure out how I would escape q

dinamic "textboxes"?
Ey all, my first post here, i hope its not a hard one

I display mysql results in a table

PHP and Javascript
Hi Guys,

Im trying to load the contents of an html file into a text area for editing, this is

Not showing whole name with mail () script
I sent up a simple mail form with the PHP mail() script. One problem is when it sends an email with

How to form a xml form table with a single sql statement..?
Hi everyone,
I don't know if this is going to be a duplicate thread but i couldn't

sendmail code suddenly not working
Hi Guys, I maintain 3 sites (including my own) I use the following code from a french webmaster that