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@ 2017-05-05T05:06:59Z

<?php

$list1 = new \SplDoublyLinkedList();

$list1->push(1);
$list1->push(2);

$list2 = clone $list1;
$list2->push(3);
$list2->push(4);

var_export(iterator_to_array($list1));
print "\n";
var_export(iterator_to_array($list2));
print "\n";

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
iterator_to_array: documentation ( source)

preferences:dark modelive preview

56.61 ms | 402 KiB | 5 Q