how to use more than one variable in a group array? - php

Question

I currently have the following code, it works great, but I've never tried to do anything more complex with this sort of thing. I'm wondering how I can add more variables to my result output.
$check_alt_sizes = mysqli_query($link, "SELECT model, version, size, category FROM items WHERE model = '$model' AND size != '$category' AND id != '$item_id'");
if (mysqli_num_rows($check_alt_sizes) >= 1) {
$group = array();
while ($row = mysqli_fetch_assoc($check_alt_sizes)) {
$group[ $row['category'] ][] = $row;
}
then later
foreach ($group as $sizes => $alt_size_urls) {
foreach ($alt_size_urls as $alt__size_url) {
echo "<a href='/items/"; echo "$alt_size_url[slug]"; // slug set elsewhere
echo "'>";
echo "$sizes</a>";
}
}
}
Now the $sizes part displays a list of sizes that I have gotten from grabbing $row['category'] in the initial $group from the query. What I would like to know is, how can I add more variables to this group, I've only ever dealt with doing it this way, never expanding it.
Currently it displays
Alternate Sizes:
size1
size2
but I would like to be able to add version as well, such as
Alternate Sizes:
Version1 - size1
Version2 - size1
Version3 - size2
I tried doing this:
echo $row['version']; echo "$sizes</a></p></li>";
But that just uses the first version found and applies it to every item. obviously because $sizes is looping and the version echo is not. How do I go about doing this?

Answer 1

I modified your source code with this one:
$group_size = "";
foreach ($group as $sizes => $alt_size_urls) {
$group_size .= "Alternate Sizes: <br>";
$ctr = 0;
foreach ($alt_size_urls as $alt__size_url) {
$group_size .= "<a href='/items/' " . $alt_size_url[slug] . (++$ctr) . "'>" . $sizes . "</a><br>";
}
}
echo $group_size;