$array
=
[
'a' => 'green',
0 => 'red',
1 => 'blue',
]
#1
|
array_unique
|
(["a" => "green", 0 => "red", "b" => "green", 1 => "blue", 2 => "red"])
|
#2
|
array_unique
|
([0 => 4, 1 => "4", 2 => "3", 3 => 4, 4 => 3, 5 => "3"])
|