The SplStack class

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

Вступ

The SplStack class provides the main functionalities of a stack implemented using a doubly linked list by setting the iterator mode to SplDoublyLinkedList::IT_MODE_LIFO.

ΠšΠΎΡ€ΠΎΡ‚ΠΊΠΈΠΉ огляд класу

class SplStack extends SplDoublyLinkedList {
/* Успадковані константи */
public const int SplDoublyLinkedList::IT_MODE_LIFO;
public const int SplDoublyLinkedList::IT_MODE_FIFO;
public const int SplDoublyLinkedList::IT_MODE_DELETE;
public const int SplDoublyLinkedList::IT_MODE_KEEP;
/* Успадковані ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈ */
public SplDoublyLinkedList::add(int $index, mixed $value): void
public SplDoublyLinkedList::bottom(): mixed
public SplDoublyLinkedList::count(): int
public SplDoublyLinkedList::current(): mixed
public SplDoublyLinkedList::getIteratorMode(): int
public SplDoublyLinkedList::isEmpty(): bool
public SplDoublyLinkedList::key(): int
public SplDoublyLinkedList::next(): void
public SplDoublyLinkedList::offsetExists(int $index): bool
public SplDoublyLinkedList::offsetGet(int $index): mixed
public SplDoublyLinkedList::offsetSet(?int $index, mixed $value): void
public SplDoublyLinkedList::offsetUnset(int $index): void
public SplDoublyLinkedList::pop(): mixed
public SplDoublyLinkedList::prev(): void
public SplDoublyLinkedList::push(mixed $value): void
public SplDoublyLinkedList::rewind(): void
public SplDoublyLinkedList::serialize(): string
public SplDoublyLinkedList::setIteratorMode(int $mode): int
public SplDoublyLinkedList::shift(): mixed
public SplDoublyLinkedList::top(): mixed
public SplDoublyLinkedList::unserialize(string $data): void
public SplDoublyLinkedList::unshift(mixed $value): void
public SplDoublyLinkedList::valid(): bool
}

ΠŸΡ€ΠΈΠΊΠ»Π°Π΄ΠΈ

ΠŸΡ€ΠΈΠΊΠ»Π°Π΄ #1 SplStack example

<?php
$q = new SplStack();
$q[] = 1;
$q[] = 2;
$q[] = 3;
foreach ($q as $elem) {
echo $elem."\n";
}
?>

Поданий Π²ΠΈΡ‰Π΅ ΠΏΡ€ΠΈΠΊΠ»Π°Π΄ Π²ΠΈΠ²Π΅Π΄Π΅:

3
2
1

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User Contributed Notes 2 notes

up
42
lsroudi at gmail dot com ΒΆ
12 years ago
the SplStack is  simply a SplDoublyLinkedList with  an iteration mode IT_MODE_LIFO and IT_MODE_KEEP
up
8
lincoln dot du dot j at gmail dot com ΒΆ
8 years ago
<?php
//SplStack Mode is LIFO (Last In First Out)
  
$q = new SplStack();

$q[] = 1;
$q[] = 2;
$q[] = 3;
$q->push(4);
$q->add(4,5);

$q->rewind();
while($q->valid()){
    echo $q->current(),"\n";
    $q->next();
}
?>

Output
5
4
3
2
1
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