interface.ilBuddySystemCollection.php

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<?php

declare(strict_types=1);

interface ilBuddySystemCollection extends Countable, IteratorAggregate, ArrayAccess
{
    public function add(mixed $element): void;

    public function remove(string|int $key): void;

    public function removeElement(mixed $element): void;

    public function containsKey(string|int $key): bool;

    public function getKey(mixed $element): string|int;

    public function clear(): void;

    public function contains(mixed $element): bool;

    public function get(string|int $key): mixed;

    public function set(string|int $key, mixed $value): void;

    public function isEmpty(): bool;

    public function getKeys(): array;

    public function getValues(): array;

    public function filter(callable $callable): self;

    public function slice(int $offset, ?int $length = null): self;

    public function toArray(): array;

    public function equals(mixed $other): bool;
}