Return Value
The array_unique() function returns the filtered array after removing all duplicates from the array.
How to remove duplicate values from array using PHP ?
In this article, we will discuss how to remove duplicate elements from an array in PHP. We can get the unique elements by using array_unique() function. This function will remove the duplicate values from the array.
Syntax
array array_unique($array, $sort_flags);
Note: The keys of the array are preserved i.e. the keys of the not removed elements of the input array will be the same in the output array.