PHP: Array index value ordering

Question

I need to change my array index values from

 Array ( [0] => 84 [1] => 109 [4] => 78 )

to

  Array ( [1] => 84 [2] => 109 [3] => 78 )

Thank you.

Answer 1

Quick and dirty method

$arrayData = array_combine(
    range(1, count($arrayData)),
    $arrayData
);

Answer 2

If you want to re-index starting to zero, simply do the following:

$ArrayFromZero = array_values($arr);

If you need it to start at one, then use the following:

$arrayFromOne = array_combine(range(1, count($arr)), array_values($arr));