ArrayIterator 类

    (PHP 5, PHP 7, PHP 8)

    简介

    允许在迭代数组和对象时删除元素以及更新值或键。

    当你想多次遍历相同数组时你需要实例化 ArrayObject，然后让这个实例创建一个 ArrayIterator 实例。 当你想遍历相同数组时多次你需要实例 ArrayObject 并且让这个实例创建一个 ArrayIterator 实例，然后使用 foreach 或者手动调用 getIterator() 方法。

    类摘要

    class ArrayIterator implements SeekableIterator, ArrayAccess, Serializable, Countable {
    /* 常量 */
    public const int STD_PROP_LIST;
    public const int ARRAY_AS_PROPS;
    /* 方法 */
    public __construct(array|object $array = [], int $flags = 0)
    public append(mixed $value): void
    public asort(int $flags = SORT_REGULAR): true
    public count(): int
    public current(): mixed
    public getArrayCopy(): array
    public getFlags(): int
    public key(): string|int|null
    public ksort(int $flags = SORT_REGULAR): true
    public natcasesort(): true
    public natsort(): true
    public next(): void
    public offsetExists(mixed $key): bool
    public offsetGet(mixed $key): mixed
    public offsetSet(mixed $key, mixed $value): void
    public offsetUnset(mixed $key): void
    public rewind(): void
    public seek(int $offset): void
    public serialize(): string
    public setFlags(int $flags): void
    public uasort(callable $callback): true
    public uksort(callable $callback): true
    public unserialize(string $data): void
    public valid(): bool
    }

    预定义常量

    ArrayIterator 标记

    ArrayIterator::STD_PROP_LIST

    Properties of the object have their normal functionality when accessed as list (var_dump, foreach, etc.).

    ArrayIterator::ARRAY_AS_PROPS

    可以通过属性访问条目（读写都支持）。

    目录

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top