Sum array values of a column within each column of an array with 3 levels

php arrays multidimensional-array transpose array-sum

PHP Snippet 1:

foreach($array as $key => $point){
  $arr[] = array_sum(array_column( array_column($array,$key),'value'));
}
print_r($arr);

PHP Snippet 2:

<?php

$arr = [];
foreach($array as $point){
   foreach($point as $k => $v){
      $arr[$k] = ($arr[$k] ?? 0) + $v['value'];
   }
}
print_r($arr);

PHP Snippet 3:

var_export(
    array_map(
        fn(...$col) => array_sum(array_column($col, 'value')),
        ...$array
    )
);

PHP Snippet 4:

array (
  0 => 3600,
  1 => 7000,
  2 => 6000,
)