How to reindex an array in php without copying it

Question

I have this array:

$x = [1 => "uno", 2 => "dos", 5 => "tres", 6 => "cuatro"];

And I need:

$x = [1 => "uno", 2 => "dos", 3 => "tres", 4 => "cuatro"];

I tried using array_values($x) but it starts counting from zero index. How could I do this?

score 8 · Accepted Answer · edited Dec 01 '22 at 14:08

8

I tried using array_values($x) but it starts counting from zero index.

Use it together with array_combine, and provide an array of values 1, 2, ... created via range to supply the desired keys:

$result = array_combine(range(1, count($x)), $x);

edited Dec 01 '22 at 14:08

IMSoP

answered Nov 30 '22 at 13:59

CBroe

2

I haven't tested to be sure, but I think you can do without the array_values call, because array_combine will iterate over the original array regardless of its keys. – IMSoP Nov 30 '22 at 14:31
@IMSoP yeah you're right, the keys of the input data to array_combine don't really matter. – CBroe Nov 30 '22 at 14:37

1 Answers1