CODEWITHSUNDEEP
phparraysmultidimensional-array
M. Pancadewa
M. Pancadewa

Reputation: 144

Get the parent array key of a multidimensional array key

I have several array variables like this:

<?
$var_array["awal"]["kahiji"] = "Iyeu nu kahiji";
$var_array["awal"]["kadua"] = "Ayeuna kadua";
$var_array["akhir"]["sisanya"] = "Nu akhir pisan";
?>

I want to know the parent key of the key "kadua" which will produce "awal" in output, is it possible?, do I need to loop, or is there a simpler way to use functions from PHP ?, thanks in advance, your tricks or help will really help me.

Upvotes: 0

Views: 86

Answers (1)

The Dog
The Dog

Reputation: 507

Sounds like you need to restructure your data.

You can't be sure that there won't be another parent for kadua that isn't awal so you will most likely have an array of keys unless you want to stop at the first or something like that.

I think this may be the sort of thing that object oriented programming could help you conceptualize.

Back to the question you actually asked, this is how I would try to solve it:

$first_keys = array();
foreach ($var_array as $key => $first_level){
    if (array_key_exists("kadua", $var_array[$key])){
        $first_keys[] = $key;
    }
}
//$first_keys has all first keys that had a second key of kadua

Upvotes: 2

Related Questions