Rewind to the first element

# IteratorIterator::rewind

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

IteratorIterator::rewind — Rewind to the first element

### 说明

public function IteratorIterator::rewind(): void

Rewinds to the first element.

### 参数

此函数没有参数。

### 返回值

没有返回值。

### 参见

- IteratorIterator::next() - Forward to the next element
- IteratorIterator::valid() - Checks if the current element is valid

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