spl_observer.stub.php

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<?php

 
interface SplObserver
{
    public function update(SplSubject $subject): void;
}
 
interface SplSubject
{
    public function attach(SplObserver $observer): void;

    public function detach(SplObserver $observer): void;

    public function notify(): void;
}
 
class SplObjectStorage implements Countable, SeekableIterator, Serializable, ArrayAccess
{
    public function attach(object $object, mixed $info = null): void {}

    public function detach(object $object): void {}

    public function contains(object $object): bool {}

    public function addAll(SplObjectStorage $storage): int {}

    public function removeAll(SplObjectStorage $storage): int {}

    public function removeAllExcept(SplObjectStorage $storage): int {}

    public function getInfo(): mixed {}

    public function setInfo(mixed $info): void {}

    public function count(int $mode = COUNT_NORMAL): int {}

    public function rewind(): void {}

    public function valid(): bool {}

    public function key(): int {}

    public function current(): object {}

    public function next(): void {}
 
    public function seek(int $offset): void {}

    public function unserialize(string $data): void {}

    public function serialize(): string {}

    public function offsetExists($object): bool {}

    public function offsetGet($object): mixed {}

    public function offsetSet($object, mixed $info = null): void {}

    public function offsetUnset($object): void {}

    public function getHash(object $object): string {}

    public function __serialize(): array {}

    public function __unserialize(array $data): void {}

    public function __debugInfo(): array {}
}
 
class MultipleIterator implements Iterator
{
    public const int MIT_NEED_ANY = UNKNOWN;
    public const int MIT_NEED_ALL = UNKNOWN;
    public const int MIT_KEYS_NUMERIC = UNKNOWN;
    public const int MIT_KEYS_ASSOC = UNKNOWN;
 
    public function __construct(int $flags = MultipleIterator::MIT_NEED_ALL|MultipleIterator::MIT_KEYS_NUMERIC) {}

    public function getFlags(): int {}

    public function setFlags(int $flags): void {}

    public function attachIterator(Iterator $iterator, string|int|null $info = null): void {}

    public function detachIterator(Iterator $iterator): void {}

    public function containsIterator(Iterator $iterator): bool {}

    public function countIterators(): int {}

    public function rewind(): void {}

    public function valid(): bool {}

    public function key(): array {}

    public function current(): array {}

    public function next(): void {}

    public function __debugInfo(): array {}
}