Sum of array for same values - php

Question

I have this array:
Array (
[0] => Array (
[TaxeName] => TPS
[TaxeAmount] => 7
[Price] => 14
)
[1] => Array (
[TaxeName] => TVQ
[TaxeAmount] => 9.975
[Price] => 10
)
[2] => Array (
[TaxeName] => TVQ
[TaxeAmount] => 9.975
[Price] => 18
)
)
How I can get another array:
- Grouping the TaxeName and the TaxeAmount and
- Making the sum of the amount Price ?
Like this:
Array (
[0] => Array (
[TaxeName] => TPS
[TaxeAmount] => 7
[Price] => 14
)
[1] => Array (
[TaxeName] => TVQ
[TaxeAmount] => 9.975
[Price] => 28
)
)

Answer 1

It can be done with a nested foreach:
$original = array(.......); // your current array
$newArr = array();
foreach($original as $origVal){
$exists = false;
foreach($newArr as $key => $newVal){
if($newVal['TaxeName'] == $origVal['TaxeName']){
$newArr[$key]['Price'] += $origVal['Price'];
$exists = true;
break;
}
}
if(!$exists){
$newArr[] = $origVal;
}
}
Outputs
Array
(
[0] => Array
(
[TaxeName] => TPS
[TaxeAmount] => 7
[Price] => 14
)
[1] => Array
(
[TaxeName] => TVQ
[TaxeAmount] => 9.975
[Price] => 28
)
)

Answer 2

Something like this maybe:
$final = array();
foreach ($arr as $subarr)
{
if (!isset($final[$subarr['TaxeName']]))
{
$final[$subarr['TaxeName']] = array('Price' => 0);
}
$final[$subarr['TaxeName']]['TaxeName'] = $subarr['TaxeAmount'];
$final[$subarr['TaxeName']]['TaxeName'] = $subarr['TaxeName'];
$final[$subarr['TaxeName']]['Price'] = $final[$subarr['TaxeName']]['Price'] + $subarr['Price'];
}
The idea is to make a new array with the values that you need and initializing it with the price set to 0 so you can increment it in the foreach

Answer 3

You can do it like this also:
<?php
// Source
$myData = array(
array(
'TaxeName' => 'TPS',
'TaxeAmount' => 7,
'Price' => 14,
),
array(
'TaxeName' => 'TVQ',
'TaxeAmount' => 9.975,
'Price' => 10,
),
array(
'TaxeName' => 'TVQ',
'TaxeAmount' => 9.975,
'Price' => 18,
)
);
// Helper Function
function parseData($data)
{
$parsedData = array();
if (is_array($data)) {
foreach ($data as $dataItem) {
if (!array_key_exists($dataItem['TaxeName'], $parsedData)) {
$parsedData[$dataItem['TaxeName']] = array(
'TaxeName' => $dataItem['TaxeName'],
'TaxeAmount' => $dataItem['TaxeAmount'],
'Price' => floatval($dataItem['Price'])
);
} else {
$parsedData[$dataItem['TaxeName']]['Price'] += floatval($dataItem['Price']);
}
}
}
return array_values($parsedData);
}
// Test
$parsed_data = parseData($myData);
var_dump($parsed_data);
?>
Outputs:

Answer 4

Just use this function, input is your array, output is the array you required:
function calculate(array $input){
$output = [];
foreach ($input as $v){
if (array_key_exists($v['TaxeName'], $output)){
$output[$v['TaxeName']]['Price'] += $v['Price'];
} else {
$output[$v['TaxeName']] = $v;
}
}
return array_values($output);
}

Answer 5

I know that solutions with external classes are not welcome here on SO. I'm showing this just to illustrate the "Grouping the TaxeName and the TaxeAmount" task.
//use class tablearray from https://github.com/jspit-de/tableArray
$data = [
['TaxeName' => 'TPS', 'TaxeAmount' => 7, 'Price' => 14],
['TaxeName' => 'TVQ', 'TaxeAmount' => 9.975, 'Price' => 10],
['TaxeName' => 'TVQ', 'TaxeAmount' => 9.975, 'Price' => 18],
['TaxeName' => 'TVQ', 'TaxeAmount' => 19.975, 'Price' => 23]
];
$newData = tableArray::create($data)
->filterGroupSum('Price',['TaxeName','TaxeAmount'])
->fetchAll()
;
echo '<pre>';
var_export($newData);
Output:
array (
0 =>
array (
'TaxeName' => 'TPS',
'TaxeAmount' => 7,
'Price' => 14,
),
1 =>
array (
'TaxeName' => 'TVQ',
'TaxeAmount' => 9.975,
'Price' => 28,
),
2 =>
array (
'TaxeName' => 'TVQ',
'TaxeAmount' => 19.975,
'Price' => 23,
),
)