php array re populate keys

Question

Hi I have an array, I need to change the keys, in an orderly manner but don\'t change the order the values are. e.g.

$a = array (
 0=>\'h\',
 1=>\'blab         


        

Answer 1

You need to apply array_values on your array to re-index.

$a = array_values($a);

Bonus: If you also need to order your values you can use sort and it too will re-index your array.

Note: By using any of array_values or sort you will loose any string keys you may have.

Answer 2

Call array_values on it:

$a = array (
 0=>'h',
 1=>'blabla',
 2=>'yes'
);

unset($a[1]);

$a = array_values($a);

var_dump($a); 
/*
array(2) {
  [0]=>
  string(1) "h"
  [1]=>
  string(3) "yes"
}
*/

Answer 3

You can also use array_splice() instead of unset(), which will automatically reindex the array elements:

$a = array (
 0=>'h',
 1=>'blabla',
 2=>'yes'
);

array_splice($a,1,1);

var_dump($a);