php foreach multidimensional array getting information

Question

I'm having some troubles getting information from an array. I'm in need to get all information per key basis but I can't get it.

I have this array:

Array(
[en] => Array(
    [a] => Array(
        [0] => [C][C]
        [1] => [L][L][C]
    ) [b] => Array(
        [0] => Tackle
        [1] => RazorLeaf
    ) [c] => Array(
        [0] => 
        [1] =>
    ) [d] => Array(
        [0] => 20
        [1] => 50
    )
) [pt] => Array(
    [a] => Array(
        [0] => [C][C]
    ) [b] => Array(
        [0] => Pontapé
    ) [c] => Array(
        [0] =>
    ) [d] => Array(
        [0] => 20
    )
)
)

In a foreach (or multiple), I'm in need to get [en][a][0], [en][b][0], [en][c][0] and [en][d][0] to insert data into database. In the next loop is supposed to get [en][a][1], [en][b][1], [en][c][1] and [en][d][1] . Last but not least, after change from [en] to [pt] it should get [pt][a][0], [pt][b][0], [pt][c][0] and [pt][d][0]

My approach:

                        foreach($result as $language => $index){
                        foreach($index as $attinfo => $index2){
                            //echo "$language <br/> $attinfo <br/>";
                            foreach($index2 as $valorfinal => $index3){
                                echo $index[$attinfo][$valorfinal][$index3]."<br/>";
                            }
                        } 

                    }

My approach seems not to work as expected. Could someone guide me please? I would like to save in vars each key to then save them in database in each foreach loop. Thanks.

I have an answer to this problem on another question, and this answer works on ANY dimensional size array, "Iterate through every single key and value in a multi-dimensional associative array PHP" : stackoverflow.com/a/52508096/2430549 — HoldOffHunger
– HoldOffHunger, Commented Oct 3, 2018 at 16:28
@HoldOffHunger your approach is interesting. Thanks for sharing that :) — Tiago
– Tiago, Commented Oct 4, 2018 at 11:13

Nigel Ren · Accepted Answer · 2018-10-04 10:34:15Z

3

I've re-organised the loops and corrected the indexes used in the final data access (you are using [$index3] as an index when it's a value)...

foreach($result as $index){
    foreach($index['a'] as $key => $value){
        $data = [];
        foreach ( $index as $key1 => $value1)   {
            $data[] = $index[$key1][$key];
        }
        print_r($data);
    }
}

this outputs...

Array
(
    [0] => [C][C]
    [1] => Tackle
    [2] => 
    [3] => 20
)
Array
(
    [0] => [L][L][C]
    [1] => RazorLeaf
    [2] => 
    [3] => 50
)
Array
(
    [0] => [C][C]
    [1] => Pontapé
    [2] => 
    [3] => 20
)

To include the language in the output...

$output = [];
foreach($result as $language => $index){
    foreach($index['a'] as $key => $value){
        $data = [];
        foreach ( $index as $key1 => $value1)   {
            $data[] = $index[$key1][$key];
        }
        $data[] = $language;
        $output[] = $data;
    }
}

print_r($output);

Gives (partial output)...

Array
(
    [0] => [C][C]
    [1] => Tackle
    [2] => 
    [3] => 20
    [4] => en
)

edited Oct 4, 2018 at 10:34

answered Oct 3, 2018 at 16:22

Nigel Ren

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8 Comments

Tiago Over a year ago

your approach is right, but it confused me. So now I don't have the first key [en] or [pt] that is in array. I need that value to insert it in database too. Also, with your approach, with a foreach, how should I access all information one by one?

Nigel Ren Over a year ago

To get the first key, use foreach($result as $language => $index){ and $language should be the [en] value. Not sure about what you mean by how should I access all information one by one

Tiago Over a year ago

I got that answer and before asking I achieved the same result , but I would like to have it as key too [4]. Instead of language before each pack of values,have it inside [0][1][2][3][4] - where the 4 would be the language. Is this possible?

Nigel Ren Over a year ago

I've updated the answer (last code segment) (changed language addition to $data[] = $language;)

Tiago Over a year ago

It creates everything in the same "array" instead of creating as much instances as exists:

Array( 	[0] => [C][C][1] => Tackle[2] => [3] => 20[4] => en[5] => [L][L][C][6] => RazorLeaf[7] => [8] => 50[9] => en[10] => [C][C][11] => Pontapé[12] => [13] => 20[14] => pt )

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