$array
=
[
0 => 0,
1 => 1,
]
#1
|
array_diff_assoc
|
(["a" => "green", "b" => "brown", "c" => "blue", 0 => "red"], |
#2
|
array_diff_assoc
|
([0 => 0, 1 => 1, 2 => 2], |