PHP Create Multidimensional Array with Reduce

Question

I am trying to make an array of arrays. Each array ($group) in the array ($multi_array) needs to be at most 40 items.

$multi_array = array_reduce($items, function($acc, $item) {

  if (count($acc) % 40 === 0) {
    array_push($acc, [$item]);
  } else {
    array_push($acc[count($acc) - 1], $item);
  }

  return $acc;
}, []);

var_dump(count($multi_array));

foreach ($multi_array as $group) {
  var_dump(count($group));
}

However in the first var_dump(count($multi_array)); the value is 1. In the next var_dump the value is 546. I am expecting $rate_limit_array to have at least 13 arrays of length 40. Does anyone know what I am doing wrong inside my reduce function? To achieve my goal, should I take a different approach in PHP?

robskrob · Accepted Answer · 2020-08-04 14:38:58Z

2

Ok I found a different way to do this with array_chunk:

$multi_array = array_chunk($items, 40, true);

answered Aug 4, 2020 at 14:38

robskrob

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