Get the inner iterator

# IteratorIterator::getInnerIterator

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

IteratorIterator::getInnerIterator — Get the inner iterator

### 说明

public function IteratorIterator::getInnerIterator(): ?Iterator

Get the inner iterator.

### 参数

此函数没有参数。

### 返回值

The inner iterator as passed to IteratorIterator::__construct(), or `null` when there is no inner iterator.

### 参见

- Iterator
- OuterIterator

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