# SyncSharedMemory::size

(PECL sync >= 1.1.0)

SyncSharedMemory::size — Returns the size of the named shared memory

### 说明

public SyncSharedMemory::size(): int

Retrieves the shared memory size of a SyncSharedMemory object.

### 参数

此函数没有参数。

### 返回值

An integer containing the size of the shared memory. This will be the same size that was passed to the constructor.

### 示例

示例 #1 SyncSharedMemory::size() example

`<?php
$mem = new SyncSharedMemory("AppReportName", 1024);
var_dump($mem->size());
?>`

以上示例的输出类似于：

    int(1024)

### 参见

- SyncSharedMemory::__construct() - Constructs a new SyncSharedMemory object
- SyncSharedMemory::write() - Copy data to named shared memory
- SyncSharedMemory::read() - Copy data from named shared memory

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