PHP, How can i get the values from associative array by level - php

Question

my question is how can i get all values from determined level of some array, i have this array:
array (size=4)
'Azul' =>
array (size=2)
'128GB' =>
array (size=2)
'Cristal' => string 'Cristal' (length=7)
'Plastico' => string 'Plastico' (length=8)
'64GB' =>
array (size=1)
'Cristal' => string 'Cristal' (length=7)
'Blanco' =>
array (size=2)
'32GB' =>
array (size=1)
'Plastico' => string 'Plastico' (length=8)
'64GB' =>
array (size=1)
'Madera' => string 'Madera' (length=6)
'Dorado' =>
array (size=1)
'64GB' =>
array (size=1)
'Plastico' => string 'Plastico' (length=8)
'Verde' =>
array (size=1)
'64GB' =>
array (size=1)
'Madera' => string 'Madera' (length=6)
And i want get the first level with this recursive function, but i cant find more deeper than 2 levels for example i need the first level and i get:
Azul, Blanco, Dorado, Verde
But i need the second level of Azul i get:
128GB, 64GB
The questions is, if i need the 3rd level of Azul and 64GB, what can i do to get this, having the keys Azul and 64GB or level 3.
My recursive but buggy function is this:
function recursive($array, $level, $itemLVL)
{
foreach ($array as $key => $value) {
//If $value is an array.
if (is_array($value)) {
//We need to loop through it.
if ($level == $itemLVL) {
//echo "<br> Key: $key - Nivel:$level $itemLVL";
echo "<option value='$key'>$key</option>";
}
recursive($value, $level + 1, $itemLVL);
} elseif ($level == $itemLVL) {
echo "<option value='$key'>$key</option>";
}
}
}

Answer 1

If you know the key names and order, then something like this will return what is under those keys:
function get_array_path($path, $array) {
$temp =& $array;
foreach($path as $key) {
$temp =& $temp[$key];
}
return $temp;
}
Pass an array of the keys in order:
$result = get_array_path(['Azul', '64GB'], $array);
If you just want the keys under the path and not everything else, then pass false as the third argument:
function get_array_path($path, $array, $values=true) {
$temp =& $array;
foreach($path as $key) {
$temp =& $temp[$key];
}
if($values === false) {
$temp = array_keys($temp);
}
return $temp;
}