Serializes the storage

# SplDoublyLinkedList::serialize

(PHP 5 >= 5.4.0, PHP 7, PHP 8)

SplDoublyLinkedList::serialize — Serializes the storage

### 说明

public function SplDoublyLinkedList::serialize(): string

Serializes the storage.

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

The serialized string.

### 参见

- SplDoublyLinkedList::unserialize() - Unserializes the storage

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