PHP - Converting Array to group duplicates together - phpspreadsheet - php

Question

I have a csv uploader i'm creating to push to an order api. Using phpSpreadsheets toArray method, i have an array like so:
Array
(
[0] => Array
(
[0] => product_sku
[1] => product_qty
[2] => shipping_name
[3] => shipping_address1
[4] => shipping_address2
[5] => shipping_city
[6] => shipping_county
[7] => shipping_postcode
[8] => shipping_type
[9] => customer_id
)
[1] => Array
(
[0] => test_sku_1
[1] => 3
[2] => Bruce Wayne
[3] => The Manor
[4] => Near Arkahm Asylumn
[5] => Gotham
[6] => Greater Gothan
[7] => B17MAN
[8] => 1
[9] => 14994333
)
[2] => Array
(
[0] => test_sku_2
[1] => 2
[2] => Bruce Wayne
[3] => The Manor
[4] => Near Arkahm Asylumn
[5] => Gotham
[6] => Greater Gothan
[7] => B17MAN
[8] => 1
[9] => 14994333
)
[3] => Array
(
[0] => test_sku_3
[1] => 7
[2] => Bruce Wayne
[3] => The Manor
[4] => Near Arkahm Asylumn
[5] => Gotham
[6] => Greater Gothan
[7] => L17MA2
[8] => 1
[9] => 14994333
)
)
Each order will be on a new line, however if a customer orders two different items, i need to group them together using their postcode. As such i was aiming to rearange into this format:
[orders] => Array(
Array(
[shipping_name] => "Bruce wayne",
[customer_id] => 14994333,
[address] => Array(
[shipping_address1] => "The Manor",
[shipping_address2] => "Near Arham Asylumn",
[shipping_city] => "Gotham",
[shipping_county] => "Greater Gotham",
[shipping_postcode] => "B17MAN",
)
[products] => Array(
Array(
[sku] => "test_sku_1",
[quantity] => 3
),
Array(
[sku] => "test_sku_2",
[quantity] => "2"
)
)
)
)
Once of the first problems i encountered was trying to match the postcodes. I managed to get a count using:
$getDuplicates = array_count_values(array_map(function($duplicates) {
return $duplicates[7]; //Where 7 is the postcode
}, $rows));
This worked in counting what i needed correctly. However from there i'm hitting a brick wall. If i'm counting the duplicates, i need it to also make a note of the rows it's already gone through so they aren't pushed incorrectly into the new array i want to make.
Pseudo it should be:
for each rows as row{
if row isn't set to be ignored{
for each count of this postcode{
array_push the product sku and qty
mark these rows as rows to be ignored
}
}
}
Can anyone help me with this?

Answer 1

So, long story short, i've been so caught up in this i completely missed the obvious. To solve this, i took the original array from phpspreadsheet and did an array_multisort:
foreach ($rows as $key => $row) {
$postcodes[$key] = $row[7]; //the postcode key
}
array_multisort($postcodes, SORT_DESC, $rows;
I then just worked my way through the array and if the postcode changed, i'd create a new array, otherwise i'd just push straight into the correct array for the products.
I feel really stupid i didn't think of this before. Thank you to #apokryfos for trying to help!