Check whether the inner iterator's current element has children

# ParentIterator::hasChildren

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

ParentIterator::hasChildren — Check whether the inner iterator's current element has children

### 说明

public function ParentIterator::hasChildren(): bool

Check whether the inner iterator's current element has children.

警告

本函数还未编写文档，仅有参数列表。

### 参数

此函数没有参数。

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

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