How to remove duplicated value with specail charecter from array in php : Here i have this array

      $myArray =  array(5) { 
    [0]=> string(62) "läs våra leveransvillkor/reservationer" 
    [1]=> string(61) "läs våra leveransvillkor/reservationer" 
    [2]=> string(60) "läs våra leveransvillkor/reservationer" 
    [3]=> string(107) "om skorstenen bryter nock, ränndal, bjälke, el, vent etc tillkommer kostnad för vinklar eller avväxling" 
    [4]=> string(59) "läs våra leveransvillkor/reservationer"
     }

I have four values are the same so i want to keep only one.
I did try to use array_unique , and even i did try this 

`array_map("unserialize", array_unique(array_map("serialize", $myArray)));`

But i was not succeed in removing duplicates .I guess the issue is because of the special character . 
Any help would be appreciated .