sort php array by index

Question

I'm having some difficulties sorting a simple array that looks like this:

array(4) {
  [32]=>
  string(1) "1"
  [34]=>
  string(1) "2"
  [35]=>
  string(1) "1"
  [33]=>
  string(1) "0"
}

I just want to sort it by the index so it would look like this:

array(4) {
  [32]=>
  string(1) "1"
  [33]=>
  string(1) "0"
  [34]=>
  string(1) "2"
  [35]=>
  string(1) "1"
}

I tried using sort($votes); but this seems to remove the index and my array looks like this afterwards:

array(4) {
  [0]=>
  string(1) "0"
  [1]=>
  string(1) "1"
  [2]=>
  string(1) "1"
  [3]=>
  string(1) "2"
}

So what would be the best way of sorting this array so that the index is still the same, but sorted?

Answer 1

You want to use ksort(), which sorts an array by its keys.

ksort

Sorts an array by key, maintaining key to data correlations. This is useful mainly for associative arrays.