--TEST--
"column" filter
--TEMPLATE--
{{ array|column('foo')|join }}
{{ traversable|column('foo')|join }}
--DATA--
$items = [['bar' => 'foo', 'foo' => 'bar'], ['foo' => 'foo', 'bar' => 'bar']];
return ['array' => $items, 'traversable' => new ArrayIterator($items)];
--EXPECT--
barfoo
barfoo
