Loop logic help needed - Can't compare correctly - php

Question

I have the following table:
And I use this function to get data from it:
function get_cart_by($player_id)
{
global $db;
$sql = 'SELECT DISTINCT(item_id) FROM ' . PCP_MARKET_CART . '
WHERE player_id = ' . (int) $player_id;
$result = $db->sql_query($sql);
$rowset = $db->sql_fetchrowseT($result);
$db->sql_freeresult($result);
$cart = array();
foreach ($rowset as $item)
{
$cart[] = $item['item_id'];
}
return $cart;
}
The result looks like this:
Array
(
[0] => 16
[1] => 17
[2] => 49
[3] => 48
[4] => 18
[5] => 19
[6] => 51
)
Now I have an array that lists all my products from another table without looking at the player_id. I want to use the array demonstrated above and add a custom class to the items that do not use the player_id, like show which items the user already has on cart.
The other array that lists all the products looks like this:
Array
(
[0] => Array
(
[item_id] => 16
[parent_id] => 11
[cat_position] => 0
[item_position] => 1
[item_type] => product
[item_title] => Custom Business
[item_description] => Some description
[item_price] => 9.99
[item_units] => 500
[item_preview] => http://i.imgur.com/3eCpMMm.png
[times_sold] => 0
[daopay_url] => http://i.imgur.com/QA7bBfJ.jpg
[public] => 1
[time] => 1384709635
)
[1] => Array
(
[item_id] => 17
[parent_id] => 11
[cat_position] => 0
[item_position] => 1
[item_type] => product
[item_title] => Custom Business
[item_description] => Some description
[item_price] => 9.99
[item_units] => 500
[item_preview] => http://i.imgur.com/3eCpMMm.png
[times_sold] => 0
[daopay_url] => http://i.imgur.com/QA7bBfJ.jpg
[public] => 1
[time] => 1384709635
)
[2] => Array
(
[item_id] => 49
[parent_id] => 11
[cat_position] => 0
[item_position] => 1
[item_type] => product
[item_title] => Custom Business
[item_description] => Some description
[item_price] => 9.99
[item_units] => 500
[item_preview] => http://i.imgur.com/3eCpMMm.png
[times_sold] => 0
[daopay_url] => http://i.imgur.com/QA7bBfJ.jpg
[public] => 1
[time] => 1384709635
)
)
Now based on the first array, I want to mark the same item IDs on the second arrays and show that they are different (on cart).
I have tried quite a lot and for some reason, I managed to mark only item_id 16 and 17, the rest are not getting "marked" for some reason.
This is the code I used:
$cartar = $market->get_cart_by($user->data['player_id']);
$cartln = sizeof($cartar) - 1;
// Fetch items of the selected category
$items = $market->fetch_cat_items($cat_id); // Equivalent to the array above
$index = 0;
print_r($items);
foreach ($items as $item)
{
$name = $item['item_name'];
if ($cartln >= $index)
{
if ($cartar[$index] == $item['item_id'])
$name .= $cartar[$index];
}
echo $name;
$index++;
}
I tried to make the example explain my case the best way possible. So, when I echo out $name it only outputs thename16 and thename17 (those two), but it doesn't continue to 49 and so on.
Please be aware that the array with all the products in it is quite large, I made it shorter for demonstration purposes only.
Were am I failing in my code? Why are only the first two items getting "marked"? I'm quite in a hurry right now, once I get back from a meeting I'll try to explain my issue further.

Answer 1

i don't know if i understood correctly but maybe you want to do it like this:
foreach ($items as $item) {
$name = $item['item_name'];
if(in_array($item['item_id'],$cartar)) {
$name .= $item['item_id'];
}
echo $name;
}
used in_array() to check if the item_id exists somewhere in $cartar. No matter on which position in array.