iterator.unique ViewHelper <vhs:iterator.unique>
¶
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