Return the inner iterator's children contained in a RecursiveFilterIterator

# RecursiveFilterIterator::getChildren

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

RecursiveFilterIterator::getChildren — Return the inner iterator's children contained in a RecursiveFilterIterator

### 说明

public function RecursiveFilterIterator::getChildren(): ?RecursiveFilterIterator

Return the inner iterator's children contained in a RecursiveFilterIterator.

### 参数

此函数没有参数。

### 返回值

Returns a RecursiveFilterIterator containing the inner iterator's children.

### 参见

- RecursiveFilterIterator::hasChildren() - Check whether the inner iterator's current element has children
- RecursiveIterator::getChildren() - Returns an iterator for the current entry

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