Question

Hy,

I have a very big question .
I have an array like this one $array[0] = 12, $array[1] = 20, $array[2] = 18 and based on this array i want to give a value to this array $array_go[12][20][18] = $value because i’m building a recursive function to create a multidimensional array with lots of subarrays.

Thank you very much .

P.S. : Is it more simple if I have a $variable = '[12][15][20]'; and somehow to create $array{$variable} = value ; because i can't seem how to do it ?

Answer 1

To be honest, I can’t really follow what you’re asking as I think there is a lot of unneeded information obscuring your actual question.

For starters, you can try the following code:

function helper(&$array, $path, $value) {
  $parent =& $array;
  foreach ($path as $entry) {
    if (!isset($parent[$entry])) {
      $parent[$entry] = array();
    }

    $parent =& $parent[$entry];
  }

  $parent = $value;
  // make this $parent[] if more than
  // one $value will be added to the same path
}

$array_go = array(); // or use some other array you already have
helper($array_go, array(12, 20, 18), 1);
helper($array_go, array(12, 15, 20), 2);
helper($array_go, array(12, 10, 22), 3);

print_r($array_go);


/*
Array
(
    [12] => Array
        (
            [20] => Array
                (
                    [18] => 1
                )

            [15] => Array
                (
                    [20] => 2
                )

            [10] => Array
                (
                    [22] => 3
                )

        )

)
*/