Online PHP editor | refs for UjKJE

@ 2019-09-16T11:51:12Z

<?php
$arr = [["4|1","4|3","4|6"],[["4|1|2","4|1|8"],["4|3|4","4|3|9"],["4|6|5","4|6|12"]]];
$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($arr));
$result = [];
foreach($it as $v) {
  $result[] = $v;
}
print_r($result);