Multi dimentional array values

[ludo1960]

Hi Guys,

I have got a large nested multi dimensional array, I have the following function that nearly does what I want: This is the array:

Array ( [country] => Scotland ....

I run it through the function below, and it finds all the nested keys and the output is Array ( [0] => country [1] .... All the keys are represented but the values are not set, how can I get the function to add the value?

function array_keys_multi(array $array)

{

$keys = array();

foreach ($array as $key => $value) {

$keys[] = $key;

if (is_array($array[$key])) {

$keys = array_merge($keys, array_keys_multi($array[$key]));

"<br>";

}

}

return $keys;...

}

 

[requinix]

I can only assume the answer is not $array["country"].

Explain what you want to do in more detail.

[ludo1960]

Yes the answer is "Scotland" more detail: As Scotland is the the first entry in the complex array, and yes I can access it by calling echo $array(['country']) all fine and well, but as you call items further down the chain eg 'price' calling $array(['price']) returns nothing. So i came across the function above and it successfully crawls the nested and multi dimensional array retaining all the keys in a usable order e.g. $array[24] is 'price'. I would like the returned array to be $array[0]['country]=>'Scotland' and .... $array[24]['price']=>'$2,000' Does that make sense? 

Edited January 12, 2019 by ludo1960

[ludo1960]

And the answer is:

function FlattenMultiArray($array,$bKeepKeys=true,$key_prefix='')

{

 

$array_flattened=Array();

foreach($array as $key=>$value){

 

if(Is_Array($value)){

$array_flattened=Array_Merge(

$array_flattened,

FlattenMultiArray($value,$bKeepKeys,$key)

);

}

else{

if($bKeepKeys){

$array_flattened["{$key_prefix}{$key}"]=$value;

}

else{

$array_flattened[]=$value;

}

}

}

 

return $array_flattened;

}

 

[Barand]

It is prone to losing values if you get a clash of key values

$data = [ 'A' => 1,
          'B' => 2,
          'C' => [ 'D' => 4, 'E' => [ 'F'=>6, 'G'=>7]],
          'F' => 6
        ];

results in

Array
(
    [A] => 1
    [B] => 2
    [CD] => 4
    [EF] => 6
    [EG] => 7
    [F] => 6
)

Whereas

$data = [ 'EG' => 1,
          'B' => 2,
          'C' => [ 'D' => 4, 'E' => [ 'F'=>6, 'G'=>7]],
          'F' => 6
        ];

results in

Array
(
    [EG] => 7
    [B] => 2
    [CD] => 4
    [EF] => 6
    [F] => 6
)

thus losing the first 'EG'