848  * @param array $array An array
852 function twig_get_array_keys_filter($array)  argument
854     if ($array instanceof \Traversable) {
855         while ($array instanceof \IteratorAggregate) {
856             $array = $array->getIterator();
859         if ($array instanceof \Iterator) {
861             $array->rewind();
862             while ($array->valid()) {
863                 $keys[] = $array->key();
864                 $array->next();
871         foreach ($array as $key => $item) {
878     if (!\is_array($array)) {
882     return array_keys($array);
929 function twig_sort_filter(Environment $env, $array, $arrow = null)  argument
931     if ($array instanceof \Traversable) {
932         $array = iterator_to_array($array);
933     } elseif (!\is_array($array)) {
934 …r(sprintf('The sort filter only works with arrays or "Traversable", got "%s".', \gettype($array)));
940         uasort($array, $arrow);
942         asort($array);
945     return $array;
1588  * @param array|Traversable $array An array
1594 function twig_array_column($array, $name, $index = null): array  argument
1596     if ($array instanceof Traversable) {
1597         $array = iterator_to_array($array);
1598     } elseif (!\is_array($array)) {
1599 …n filter only works with arrays or "Traversable", got "%s" as first argument.', \gettype($array)));
1602     return array_column($array, $name, $index);
1605 function twig_array_filter(Environment $env, $array, $arrow)  argument
1607     if (!twig_test_iterable($array)) {
1608 …ts an array or "Traversable", got "%s".', \is_object($array) ? \get_class($array) : \gettype($arra…
1613     if (\is_array($array)) {
1614         return array_filter($array, $arrow, \ARRAY_FILTER_USE_BOTH);
1618     return new \CallbackFilterIterator(new \IteratorIterator($array), $arrow);
1621 function twig_array_map(Environment $env, $array, $arrow)  argument
1626     foreach ($array as $k => $v) {
1633 function twig_array_reduce(Environment $env, $array, $arrow, $initial = null)  argument
1637     if (!\is_array($array)) {
1638         if (!$array instanceof \Traversable) {
1639 …" filter only works with arrays or "Traversable", got "%s" as first argument.', \gettype($array)));
1642         $array = iterator_to_array($array);
1645     return array_reduce($array, $arrow, $initial);