What are best practices for maintaining both keys and values in an array after using array_chunk in PHP?

When using the array_chunk function in PHP to split an array into chunks, the resulting chunks will have numerical keys starting from 0. To maintain both keys and values in each chunk, you can use the array_combine function along with array_keys to preserve the original keys. This way, you can keep track of both the keys and values in the chunked arrays. 

$array = ['a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5];
$chunkedArray = array_chunk($array, 2, true);

foreach ($chunkedArray as $chunk) {
    $keys = array_keys($chunk);
    $chunkWithKeys = array_combine($keys, $chunk);
    
    var_dump($chunkWithKeys);
}

Keywords

array_chunk array keys values maintain

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