PHP creating and merging multidimensional arrays

Question

I'm having some troubles creating and merging multidimensional arrays. Trying to explain, I have a dynamic "pack of 4 inputs". Those are generated via PHP and the user can add more "4 packs" of inputs.

Those inputs are named as input1[en] or input1[pt]. So, to better understand a simple $_POST of input1, it prints the following array (still out input2,3 and 4) that needs separated foreach:

Array(
[en] => Array(
    [0] => [C][C]
    [1] => [L][L][C]
)
[pt] => Array(
    [0] => [C][C]
)
)

Now, I need to create just one array that contains all the information from inputs, but I'm having some trouble right in the first array creation (from input1).

Using the code:

foreach($_POST['input1'] as $language => $index){
    foreach($index as $newvalue => $index2){
        $cernegy[$language] = array(
            'energy' => array($newvalue => $index2)                 
        );
    }
}

The output is:

Array(
[en] => Array(
    [energy] => Array(
        [1] => [L][L][C]
    )
) [pt] => Array(
    [energy] => Array(
        [0] => [C][C]
    )
)
)

As you can see it misses the key [0] inside [en]. All the same happens with the others inputs (it only left in the array the last key when there are multiple inputs for the same language (in this case [en]))

My others foreach are equal, but changes the 'energy' => array($newvalue => $index2) to 'attack' => array($newvalue => $index2) and so on...

Then, the second problem is merging the arrays. If I merge two arrays (even with wrong information), it only keeps the last merged array. Basically if I merge array1 (that generates 'energy' with array2 (that generates 'attack' ) it only keeps the information from from array2 for example:

Array(
[en] => Array(
    [attack_name] => Array(
        [1] => RazorLeaf
    )
) 
[pt] => Array(
    [attack_name] => Array(
        [0] => Pontapé
    )
)
)

And it should be something like:

Array(
[en] => Array(
    [energy] => Array(
        [1] => [L][L][C]
    )
    [attack_name] => Array(
        [1] => RazorLeaf
    )
) 
[pt] => Array(
    [energy] => Array(
        [0] => [C][C]
    )
    [attack_name] => Array(
        [0] => Pontapé
    )
)
)

I've used this to merge (the array names are example only):

$result = array_merge($array1, $array2);

Could someone point me in the right direction in both problems please? Thanks for your time.

Edit: First part is now solved. The problem remains now in merging two arrays. As an example of two arrays ($array1 and $array2 in order): Array1

Array(
[en] => Array(
    [energy] => Array(
        [0] => [C][C]
        [1] => [L][L][C]
    )
) 
[pt] => Array(
    [energy] => Array(
        [0] => [C][C]
    )
)
)

Array2

Array(
[en] => Array(
    [attack_name] => Array(
        [0] => Tackle
        [1] => RazorLeaf
    )
) 
[pt] => Array(
    [attack_name] => Array(
        [0] => Pontapé
    )
)
)

As I use $result = array_merge($array1, $array2); I was expecting to get:

Array(
[en] => Array(
    [energy] => Array(
        [0] => [C][C]
        [1] => [L][L][C]
    )
    [attack_name] => Array(
        [0] => Tackle
        [1] => RazorLeaf
    )
) 
[pt] => Array(
    [energy] => Array(
        [0] => [C][C]
    )
    [attack_name] => Array(
        [0] => Pontapé
    )
)
)

But I only get as output the $array2 information:

Array(
[en] => Array(
    [attack_name] => Array(
        [0] => Tackle
        [1] => RazorLeaf
    )
) 
[pt] => Array(
    [attack_name] => Array(
        [0] => Pontapé
    )
)
)

What I'm doing wrong?

have you tried: $cernegy[$language][] = ['energy' => [$newvalue => $index2]] ? — Saeed M.
– Saeed M., Commented Oct 3, 2018 at 14:12
Or $cernegy[$language]['energy'][] = [$newvalue => $index2] — RiggsFolly
– RiggsFolly, Commented Oct 3, 2018 at 14:19
@RiggsFolly your code seems to create the array with all data, but I don't know if it's the best way to create it. Can you check it please? It seems there is more keys than necessary. Array( [en] => Array( [energy] => Array( [0] => Array( [0] => [C][C] ) [1] => Array( [1] => [L][L][C] ) ) ) [pt] => Array( [energy] => Array( [0] => Array( [0] => [C][C] ) ) ) — Tiago
– Tiago, Commented Oct 3, 2018 at 14:34
Also the merge still get's the last array only, not merging both. — Tiago
– Tiago, Commented Oct 3, 2018 at 14:35
@smoqadam your approach works too, but I prefer the logistic of RiggsFolly Thanks for your time :) — Tiago
– Tiago, Commented Oct 3, 2018 at 14:36

Eleonora Ivanova · Accepted Answer · 2018-10-03 14:41:44Z

3

You are overwriting the value rather than adding to the array. Try something like:

foreach($_POST['input1'] as $language => $index){
    $inner = array();
    foreach($index as $newvalue => $index2){
        $inner[$newvalue] = $index2;
     }
     $cernegy[$language] = array('energy' => $inner);
}

edited Oct 3, 2018 at 14:41

answered Oct 3, 2018 at 14:22

Eleonora Ivanova

8236 silver badges8 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Tiago Over a year ago

Thanks, but it seems it creates new key where it doesnt exists. Por example I have only one key in [pt] and it creates two keys:

Array( 	[en] => Array( 		[energy] => Array( 			[0] => [C][C][1] => [L][L][C] 		) 	) [pt] => Array( 		[energy] => Array( 			[0] => [C][C][1] => [L][L][C] 		) 	) )

Eleonora Ivanova Over a year ago

@Tiago See the edit, I missed out on wiping out the array once done

Tiago Over a year ago

thanks. It solved my first problem. I've edited the code with the second problem (arra_merge). Can you check it please?

Tiago Over a year ago

I've done it. Instead of using array_merge used array_merge_recursive and it worked. Now I have all the information together. Thanks for your time!

Collectives™ on Stack Overflow

PHP creating and merging multidimensional arrays

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related