(PHP 5, PHP 7, PHP 8)
RecursiveIteratorIterator::getSubIterator — The current active sub iterator
public RecursiveIteratorIterator::getSubIterator(?int $level = null): ?RecursiveIterator
This function is currently not documented; only its argument list is available.
level The current active sub iterator on success; null on failure.
| Version | Description |
|---|---|
| 8.0.0 | level is now nullable. |
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https://www.php.net/manual/en/recursiveiteratoriterator.getsubiterator.php