生成器类

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

Generator 对象是从 generators返回的.

警告

Generator 对象不能通过 new 实例化.

final class Generator implements Iterator {

/* 方法 */

public function current(): mixed

public function getReturn(): mixed

public function key(): mixed

public function next(): void

public function rewind(): void

public function send(mixed $value): mixed

public function throw(Throwable $exception): mixed

public function valid(): bool

public function __wakeup(): void

}

也可以参考遍历对象。

Generator::current — 返回当前产生的值
Generator::getReturn — 获取生成器的返回值
Generator::key — 返回当前产生的键
Generator::next — 生成器继续执行
Generator::rewind — 执行生成器，直至并包含第一个 yield 语句
Generator::send — 向生成器中传入一个值
Generator::throw — 向生成器中抛入一个异常
Generator::valid — 检查迭代器是否被关闭
Generator::__wakeup — 序列化回调

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生成器类

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