I have an associative array and I want to sum the duplicated values due to the duplicated elements in the key..
For better explain:
array:6 [
0 => array:4 [
"itemsName" => "H&M Chemise#15 M.Colors Orange x Grey '17(red-l)"
"itemsQuantity" => 3
"itemsCode" => 101
"itemsBarcode" => "101|60|78"
]
1 => array:4 [
"itemsName" => "H&M Chemise#15 M.Colors Orange x Grey '17(green-l)"
"itemsQuantity" => 1
"itemsCode" => 101
"itemsBarcode" => "101|15|78"
]
2 => array:4 [
"itemsName" => "Polo Cap Multi Colors B-Logo(red-l)"
"itemsQuantity" => 2
"itemsCode" => 104
"itemsBarcode" => "104|60|78"
]
3 => array:4 [
"itemsName" => "Polo Cap S-Logo White(green-l)"
"itemsQuantity" => 1
"itemsCode" => 107
"itemsBarcode" => "107|15|78"
]
4 => array:4 [
"itemsName" => "H&M Chemise#15 M.Colors Orange x Grey '17(green-l)"
"itemsQuantity" => 2
"itemsCode" => 101
"itemsBarcode" => "101|15|78"
]
5 => array:4 [
"itemsName" => "H&M Chemise#15 M.Colors Orange x Grey '17(red-l)"
"itemsQuantity" => 3
"itemsCode" => 101
"itemsBarcode" => "101|60|78"
]
]
Problem:
You will find that the barcode 01|15|78 is duplicated in the array index 4 and 1 so I want to sum up the quantities in index 4 and 1 and make them a single array and it will be:
[ "itemsName" => "H&M Chemise#15 M.Colors Orange x Grey '17(green-l)" "itemsQuantity" => 3 "itemsCode" => 101 "itemsBarcode" => "101|15|78" ]
Lets assume your array was saved under the variable $cart.
You can use the PHP function array_reduce to walk through each item of your array, filter it and edit the values of other indices.
$cart = array_reduce($cart, function($newCart, $item){
$barCode = $item['itemsBarcode'];
if (array_key_exists($barCode, $newCart)) {
$newCart[$barCode]['itemsQuantity'] += $item['itemsQuantity'];
} else {
$newCart[$barCode] = $item;
}
return $newCart;
}, []);
If you need to have simple numeric array keys (to loop it through an for loop for example) use $cart = array_values($cart); afterwards.
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