Iterator Unique Values ViewHelper

Implementation of array_unique for Fluid

Accepts an input array of values and returns/assigns a new array containing only the unique values found in the input array.

Note that the ViewHelper does not support the sorting parameter - if you wish to sort the result you should use v:iterator.sort in a chain.

Usage examples

<!--
Given a (large) array of every user's country with possible duplicates.
The idea being to output only a unique list of countries' names.
-->

Countries of our users: {userCountries -> v:iterator.unique() -> v:iterator.implode(glue: ' - ')}

Output:

Countries of our users: USA - USA - Denmark - Germany - Germany - USA - Denmark - Germany

<!-- Given the same use case as above but also implementing sorting -->
Countries of our users, in alphabetical order:
{userCountries -> v:iterator.unique()
    -> v:iterator.sort(sortFlags: 'SORT_NATURAL')
    -> v:iterator.implode(glue: ' - ')}

Output:

Countries of our users: Denmark - Germany - USA