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    The Collection interface

    (PECL ds >= 1.0.0)

    简介

    Collection is the base interface which covers functionality common to all the data structures in this library. It guarantees that all structures are traversable, countable, and can be converted to json using json_encode().

    接口摘要

    interface Ds\Collection extends Countable, IteratorAggregate, JsonSerializable {
    /* 方法 */
    public clear(): void
    public copy(): Ds\Collection
    public isEmpty(): bool
    public toArray(): array
    /* 继承的方法 */
    public Countable::count(): int
    public IteratorAggregate::getIterator(): Traversable
    public JsonSerializable::jsonSerialize(): mixed
    }

    更新日志

    版本 说明
    PECL ds 1.4.0 Collection implements IteratorAggregate now instead of just Traversable. (This change came to the polyfill in 1.4.1.)

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