Replace key in array, with keeping order intact - php

Question

I would like to replace keys in arrays, because I will move them on two indexes up.
Problem that I am facing is that those are containing same names which will not be ok, if i want to move them up.
This is how array looks like.
$list = array(
'ind' => array(
'messagetype' => 'Alert',
'visibility' => 'Public',
'info' => array(
0 => array(
'urgency' => 'Urgent',
'params' => array(
0 => array(
'Name' => 'display',
'value' => '3; top',
),
1 => array(
'Name' => 'level',
'value' => '1; blue',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GSSD154',
),
),
),
),
1 => array(
'messagetype' => 'Information',
'visibility' => 'Private',
'info' => array(
0 => array(
'urgency' => 'Minor',
'params' => array(
0 => array(
'Name' => 'display',
'value' => '1; left',
),
1 => array(
'Name' => 'level',
'value' => '1; red',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GBECS23',
),
),
),
),
),
),
),
),
);
and this is how I would like the output to be with changing keys in Name0, Name1, which are inside params.
$list = array(
'ind' => array(
'messagetype' => 'Alert',
'visibility' => 'Public',
'info' => array(
0 => array(
'urgency' => 'Urgent',
'params' => array(
0 => array(
'Name0' => 'display',
'value0' => '3; top',
),
1 => array(
'Name1' => 'level',
'value1' => '1; blue',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GSSD154',
),
),
),
),
1 => array(
'messagetype' => 'Information',
'visibility' => 'Private',
'info' => array(
0 => array(
'urgency' => 'Minor',
'params' => array(
0 => array(
'Name0' => 'display',
'value0' => '1; left',
),
1 => array(
'Name1' => 'level',
'value1' => '1; red',
),
),
'area' => array(
'ard' => 'Bob',
'code' => array(
0 => array(
'Name' => 'Badge',
'value' => 'GBECS23',
),
),
),
),
),
),
),
),
);
I have tried with a lots of examples over this website, but could not find one to achieve this.
Code that I used from
How to replace key in multidimensional array and maintain order
function replaceKey($subject, $newKey, $oldKey) {
// if the value is not an array, then you have reached the deepest
// point of the branch, so return the value
if (!is_array($subject)) {
return $subject;
}
$newArray = array(); // empty array to hold copy of subject
foreach ($subject as $key => $value) {
// replace the key with the new key only if it is the old key
$key = ($key === $oldKey) ? $newKey : $key;
// add the value with the recursive call
$newArray[$key] = replaceKey($value, $newKey, $oldKey);
}
return $newArray;
}
$s = replaceKey($list, 'Name0', 'Name');
print "<PRE>";
print_r($s);
at the moment I get this output:
[0] => Array
(
[Name0] => display
[value] => 1; left
)
[1] => Array
(
[Name0] => level
[value] => 1; red
)
any help would be appreciated. regards

Answer 1

A very strange question, but why not?
The following function returns nothing (a procedure) and changes the array in-place using references but feel free to rewrite it as a "real" function (without references and with a return statement somewhere).
The idea consists to search for arrays, with numeric keys and at least 2 items, in which each item has the Name and value keys. In other words, this approach doesn't care about paths where the targets are supposed to be:
function replaceKeys(&$arr) {
foreach ($arr as &$v) {
if ( !is_array($v) )
continue;
$keys = array_keys($v);
if ( count($keys) < 2 ||
$keys !== array_flip($keys) ||
array_keys(array_merge(...$v)) !== ['Name', 'value'] ) {
replaceKeys($v);
continue;
}
foreach ($v as $k => &$item) {
$item = array_combine(["Name$k", "value$k"], $item);
}
}
}
replaceKeys($list);
print_r($list);
demo