Problem with searching for a string occurence within another string

[GaryAC]

Hi,

I have a problem with searching for strings within strings. What I have is a session variable called $basketContents.

Now every time a new item is selected it is in this format:

ID,Title,QTY,Price:

e.g.

1,Matrix,1,20.99:

Then when another item is selected it is added to the end of this string.

e.g.

1,Matrix,1,20.99:4,Meet The Parents,1,16.99:

So I know that the sysmbol ":", differenciates each item.

Only problem is if an item is selected for a second time, then instead of re-entering it into the session string it would be better to change the QTY to 2.

So I have been trying to use:

$qty = substr_count($ckBasketContents, $basketContents);

Where $ckBasketContents is the item selected and $basketContents is the session variable containing all my items.

However this does not seem to be working as if I use this code:

$qty = substr_count($ckBasketContents, $basketContents);
if ($qty>1){
echo "Found more than once";
}else{
echo "Only occurs once";
}

And add two instances of the same title, it does not bring back a value greater than 1. So it is obviously not recognising that the string $basketContents contains two instances of a particular string (in this case a title name, e.g. Matrix).

Can anyone tell me how I can check to see if there is more than one instance within my session string.

Thanks for any help

Regards

Gary

[LordShryku]

http://www.php.net/strpos

[Shrike]

I wouldn't use a string to build the eventual SQL query, a hash is much more representative of a database table, and alot easier to manage

$myitems = array(
  'itemid' => array(1,2,3,4),
  'itemid' => array(1,2,3,4)
);

// Add a new item
$myitems['itemid'] = array(1,2,3,4);

// Manipulate an existing item
$myitems['itemid'][2] = $value;

// Assuming that 'itemid' is a unique identifier in each case

hth 🙂