强制更改数组键以连续编号[重复]

This question already has an answer here:

I have a problem like the example below. The array output that I have is array key #4 is missing,

Array (    [0] => Array
      (
           [milestonename] => Start Date
           [datefrom] => 03/01/2015
       )

   [1] => Array
       (
           [milestonename] => Finish Date
           [datefrom] => 03/24/2015
       )

   [2] => Array
       (
           [milestonename] => Release Date
           [datefrom] => 03/29/2015
       )

   [3] => Array
       (
           [milestonename] => release dasa
           [datefrom] => 03/16/2015
       )

   [5] => Array
       (
           [milestonename] => dasawarsa
           [datefrom] => 03/16/2015
       )

   [6] => Array
       (
           [milestonename] => lasawara
           [datefrom] => 03/18/2015
       )

   [7] => Array
       (
           [milestonename] => testing das
           [datefrom] => 03/29/2015
       ) )

I want this array key to be continuous numbering like array key is keep sorting by number

Array (    [0] => Array
      (
           [milestonename] => Start Date
           [datefrom] => 03/01/2015
       )

   [1] => Array
       (
           [milestonename] => Finish Date
           [datefrom] => 03/24/2015
       )

   [2] => Array
       (
           [milestonename] => Release Date
           [datefrom] => 03/29/2015
       )

   [3] => Array
       (
           [milestonename] => release dasa
           [datefrom] => 03/16/2015
       )

   [4] => Array
       (
           [milestonename] => dasawarsa
           [datefrom] => 03/16/2015
       )

   [5] => Array
       (
           [milestonename] => lasawara
           [datefrom] => 03/18/2015
       )

   [6] => Array
       (
           [milestonename] => testing das
           [datefrom] => 03/29/2015
       ) )
</div>

Use array_values:

$fixed_array = array_values($array);

you can just use array_values function

$arr = array_values($arr);