How to re-key array with non-sequential numeric keys

Question

I have an array:

Array (  [0] => ololo  [2] => test  [3] => haha  [7] => nice ) 

How can I change the indexes of the array to this:

Array (  [0] => ololo  [1] => test  [2] => haha  [3] => nice ) 

Answer 1

From PHP.net:

array_values() returns all the values from the input array and indexes the array numerically.

Source

$arr = array_values($arr); 

Answer 2

array_values() is probably what you want. See: http://php.net/function.array-values

$myArray = array_values($myArray);