SplDoublyLinkedList::unshift

(PHP 5 >= 5.3.0)

SplDoublyLinkedList::unshiftPrepends the doubly linked list with an element

Опис

public void SplDoublyLinkedList::unshift ( mixed $value )

Prepends value at the beginning of the doubly linked list.

Параметри

value

The value to unshift.

Значення, що повертаються

Не повертає значень.

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User Contributed Notes 1 note

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lincoln dot du dot j at gmail dot com
4 years ago
$dll = new SplDoublyLinkedList();
$dll->push(2);
$dll->push(3);
$dll->unshift(5); // add 5 beginning of the array
$dll->rewind();

while($dll->valid()){
    echo $dll->current()."\n";
    $dll->next();
}

Output

5
2
3
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