PHP Taskbook Level 4.3
Make a function that will take an array as a parameter and remove all duplicates from it.
Make a function that will take an array as a parameter and remove from it all duplicates that occur more than three times.
Make a function that will take an array as a parameter and remove identical, adjacent elements from it.
Create a function that takes an array of numbers as a parameter and returns the maximum and minimum values from that array as the following array:
[
'max' => 9,
'min' => 1,
]
