4 {{ [1, 2, 3, 4]|reverse|join('') }}
5 {{ '1234évènement'|reverse }}
6 {{ arr|reverse|join('') }}
7 {{ {'a': 'c', 'b': 'a'}|reverse()|join(',') }}
8 {{ {'a': 'c', 'b': 'a'}|reverse(preserveKeys=true)|join(glue=',') }}
9 {{ {'a': 'c', 'b': 'a'}|reverse(preserve_keys=true)|join(glue=',') }}
11 return array('arr' => new ArrayObject(array(1, 2, 3, 4)))