PHP Merge array by same index

Question

I have two arrays by array_merge() that look like this:

 Array(
            [1] => Array(
                  [date] => 2018-09-25
                  [size_one] => 'XL'
                  [name_one] => 'Shoes'
                )
            [2] => Array(
                    [date] => 2018-09-25
                    [size_two] => 'L'
                    [name_two] => 'Shirt'
                )
            [3] => Array(
                    [date] => 2018-09-26
                    [size_two] => 'L'
                    [name_two] => 'Shirt'
                )
            )

If same date value, I need as a result something like the following:

Array(
                [1] => Array(
                      [date] => 2018-09-25
                      [size_one] => 'XL'
                      [name_one] => 'Shoes'
                      [size_two] => 'L'
                      [name_two] => 'Shirt'
                    )
                [2] => Array(
                        [date] => 2018-09-26
                        [size_two] => 'L'
                        [name_two] => 'Shirt'
                    )
                )

want to be able to put these into an array for laravel, Can someone show me the proper way to merge these arrays?

You can use laravel collection. First you need to group by date, then merge each group and remove the keys. `$result = collect($input) ->groupBy('date') ->map(function ($item) { return array_merge(...$item->toArray()); }) ->values();` — Илья Зеленько, Sep 24 '18 at 18:25

Madhur Bhaiya · Accepted Answer · 2018-09-24T18:00:18.917

0

Using array_merge and array_key_exists functions, with some basic foreach looping and conditionals, you can try the following (steps explained in the code comments):

// $input is your input array

// initialize output array
$output = array();

// loop over the input
foreach ($input as $key => $value) {

    // check if the date key is already set in the output or not
    if ( array_key_exists($value['date'], $output) ) {

        // this is duplicate based on date - merge into output
        $output[$value['date']] = array_merge($output[$value['date']], 
                                              $value);
    } else {

        // new entry for date
        $output[$value['date']] = $value;
    }
}

edited Sep 24 '18 at 18:00

answered Sep 24 '18 at 17:55

Madhur Bhaiya

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That's Work.. thanks. – gilang taufik Sep 24 '18 at 18:12
@gilangtaufik happy to help :) – Madhur Bhaiya Sep 24 '18 at 18:18

PHP Merge array by same index

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