RecursiveIteratorIterator::getSubIterator

(PHP 5, PHP 7, PHP 8)

RecursiveIteratorIterator::getSubIterator — The current active sub iterator

說明

public RecursiveIteratorIterator::getSubIterator(?int $level = null): ?RecursiveIterator
警告

本函數(shù)還未編寫文檔，僅有參數(shù)列表。

參數(shù)

level

返回值

The current active sub iterator on success; null on failure.

更新日志

版本 說明
8.0.0 level is now nullable.