Serializes the storage

# SplObjectStorage::serialize

(PHP 5 >= 5.2.2, PHP 7, PHP 8)

SplObjectStorage::serialize — Serializes the storage

### 说明

public function SplObjectStorage::serialize(): string

Returns a string representation of the storage.

### 参数

此函数没有参数。

### 返回值

A string representing the storage.

### 示例

示例 #1 SplObjectStorage::serialize() example

    <?php
    $s = new SplObjectStorage;
    $o = new stdClass;
    $s[$o] = "data";

    echo $s->serialize()."\n";
    ?>

以上示例的输出类似于：

    x:i:1;O:8:"stdClass":0:{},s:4:"data";;m:a:0:{}

### 参见

- SplObjectStorage::unserialize() - Unserializes a storage from its string representation

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