clone array and add a subarray

Question

i have the following problem. i have a large array structure which i assign values from a sql statement:

$data[$user][$month]['id'] = $data->id;
$data[$user][$month]['company'] = $data->company;
...
...

and around 30 other values.

i need to clone this array ($data) and add a subarray like:

$data[$user][$month][$newsubarray]['id'] = $data->id;
$data[$user][$month][$newsubarray]['company'] = $data->company;
...
...

i need to clone it because the original array is used by many templates to display data.

is there a way to clone the array and add the subarray without assign all the values to the cloned array? this blows up my code and is very newbi, but works.

$data[$user][$month][$newsubarray] = $data[$user][$month]; Something like this? — rishipuri
– rishipuri, Commented May 16, 2017 at 14:08

LF-DevJourney · Accepted Answer · 2017-05-16 14:29:19Z

2

You can use array_map, check the live demo

if you want to pass parameter to array_map(), use this

array_map(function($v) use($para1, $para2, ...){...}, $array);

Here is the code,

<?php

$array =array('user'=> array('month'=>array('id' =>2, 'company' => 3)));
print_r($array);
print_r(array_map(function($v){
  $arr = $v['month'];
  $v['month'] = [];
  $v['month']['newsubarray'] = $arr;
  return $v;}
, $array));

answered May 16, 2017 at 14:29

LF-DevJourney

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Comments

BlobbyBob · Accepted Answer · 2017-05-16 14:04:02Z

1

You can iterate through the array with nested foreach loops.

It would look similar to this:

foreach ($data as $user=>$arr2) {
    foreach ($arr2 as $month=>$arr3) {
        foreach ($arr3 as $key=>$value) {
            $data[$user][$month][$newsubarray][$key] = $value;
        }
    }
}

answered May 16, 2017 at 14:04

BlobbyBob

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1 Comment

Gabbax0r Over a year ago

this worked, had to exclude 2 values because they have a summary. thank you very much.

timiTao · Accepted Answer · 2017-05-16 14:06:02Z

0

Your last level of array, you can create object, for holding data with implementing ArrayAccess. Then simply by reference, assign object in desire places. This way, you can hold 1 object and use it multi places, but if you change in one - this change in all.

Then you addictionaly, can implements __clone method to clone object correctly.

answered May 16, 2017 at 14:06

timiTao

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