i have array like this

```
$arrA = array(0 => 0, 1=>1, 2=>2 );

```

and 

```
$arrB = array(0 => "0", 1 => "1"); 

```

and i search difference the array with

```
$lol = array_diff($arrA, $arrB);
var_dump($lol);

```

but the output of key array start from 2 not from 0 like this : 

```
array(1) {
  [2]=>
  string(1) "2"
}

```

my question is how to change key of the array in variable `$lol` to `0(zero)` again ?

thank you