CODEWITHSUNDEEP
phpassociative-array
ctf0
ctf0

Reputation: 7577

how to match keys from nested associative array in php

so for example i have something like 

array:2 [▼
  "old" => array:2 [▼
    "uk" => "unk"
    "en" => "eng"
    "fr" => "fre"
  ]
  "new" => array:2 [▼
    "uk" => "united kingdom"
    "en" => "english"
    "fr" => "french"
  ]
]

atm i can only get one item according to a predefined key

foreach ($data as $status => $value) {
    $str .= $value['uk'];
}

which give 

unk    united kingdom

instead i want to get all of them, so the result would be

unk    united kingdom
eng    english
fre    french

which could be translated into an array or combined values

array:3 [▼
  "uk" => [
    "unik",
    "united kingdom"
  ],
  "en" => [
    "eng",
    "english"
  ],
  "fr" => [
    "fren",
    "french"
  ]
]

so what's the best way to achive that ?

Upvotes: 1

Views: 44

Answers (2)

Tarun
Tarun

Reputation: 3165

You just need to flatten the sub-arrays :

$output = array();
foreach ($data as $status => $codeArray) {
   foreach ($codeArray as $code=>$value){
     $output[$code][]=$value;
   }
}

Upvotes: 1

hassan
hassan

Reputation: 8308

you may go with array_walk_recursive as follows: 

$output = [];
array_walk_recursive($arr, function ($value, $key) use (&$output) {
    $output[$key][] = $value;
});

live example: https://3v4l.org/aKYsG .

Upvotes: 2

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