array_partition function

[remco-pc]

Description

this function is like array_chunk, but instead of making it chunk size, it will use partition.

The difference with array_chunk is that it chunks the elements in a multidimensional array up to size.

function array_partition($array=[], $size=1, $preserve_keys=false): array
    {
        $array = (array) $array;
        $size = (int) $size;
        if($size < 1){
            throw new Exception('Size must be greater than 0');
        }
        $result = [];
        $partition = [];
        $counter = 0;
        $count = count($array);
        $amount = (int) ceil($count / $size);
        if($preserve_keys === false){
            foreach ($array as $value) {
                $partition[] = $value;
                $counter++;
                if ($counter === $amount) {
                    $result[] = $partition;
                    $partition = [];
                    $counter = 0;
                }
            }
        } else {
            foreach ($array as $key => $value) {
                $partition[$key] = $value;
                $counter++;
                if ($counter === $amount) {
                    $result[] = $partition;
                    $partition = [];
                    $counter = 0;
                }
            }
        }
        if(!empty($partition)){
            $result[] = $partition;
        }
        return $result;
    }

$partition = array_partition($array, 2);

results in

$partition = [
0 => [...],
1 => [...]
]

[remco-pc]

found my oneliner:

$chunks = array_chunk($list, ceil(count($list) / $threads));

so function could be:

/**
     * @throws Exception
     */
    function array_partition($array=[], $size=1, $preserve_keys=false): array
    {
        $array = (array) $array;
        $size = (int) $size;
        if($size < 1){
            throw new Exception('Size must be greater than 0');
        }
        return array_chunk($array, ceil(count($array) / $size), $preserve_keys);
    }