Retrieves information about session cache memory usage

# wincache_scache_meminfo

(PECL wincache >= 1.1.0)

wincache_scache_meminfo — Retrieves information about session cache memory usage

### 说明

function wincache_scache_meminfo(): array|false

Retrieves information about memory usage by session cache.

### 参数

此函数没有参数。

### 返回值

Array of meta data about session cache memory usage 或者在失败时返回 `false`

The array returned by this function contains the following elements:

- `memory_total` - amount of memory in bytes allocated for the session cache
- `memory_free` - amount of free memory in bytes available for the session cache
- `num_used_blks` - number of memory blocks used by the session cache
- `num_free_blks` - number of free memory blocks available for the session cache
- `memory_overhead` - amount of memory in bytes used for the session cache internal structures

### 示例

示例 #1 A wincache_scache_meminfo() example

    <pre>
    <?php
    print_r(wincache_scache_meminfo());
    ?>
    </pre>

以上示例会输出：

    Array
    (
        [memory_total] => 5242880
        [memory_free] => 5215056
        [num_used_blks] => 6
        [num_free_blks] => 3
        [memory_overhead] => 176
    )

### 参见

- wincache_fcache_fileinfo() - Retrieves information about files cached in the file cache
- wincache_fcache_meminfo() - Retrieves information about file cache memory usage
- wincache_ocache_fileinfo() - Retrieves information about files cached in the opcode cache
- wincache_rplist_fileinfo() - Retrieves information about resolve file path cache
- wincache_rplist_meminfo() - Retrieves information about memory usage by the resolve file path cache
- wincache_refresh_if_changed() - Refreshes the cache entries for the cached files
- wincache_ucache_info() - Retrieves information about data stored in the user cache
- wincache_scache_info() - Retrieves information about files cached in the session cache

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