Question

Hi want to ask if there is a way to do this without foreach ($array as $k=>$v). I know it will work but I’m looking for a more elegant way if you know.
So my array was like:

1 = 231
2 = 432
3 = 324

I flipped it and it became: 231 => 1, 432 =>2, 324 => 3. Now what I need to do is to set all values to '1'

Answer 1

You can use array_fill_keys:

$array = array(
    1 => 231,
    2 => 432,
    3 => 324
);

$array = array_flip($array);

$array = array_fill_keys(array_keys($array), 1);