在Windows上使用PHP获取可用的系统总内存 | 在Windows上使用PHP获取可用的系统总内存

本文介绍了在Windows上使用PHP获取可用的系统总内存的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

使用PHP，我想获取系统可用的总内存(不仅仅是可用内存或已用内存).

Using PHP, I'd like to get the total memory available to the system (not just the free or used memory).

在Linux上非常简单.您可以这样做:

On Linux it's quite straight forward. You can do:

$memory = fopen('/proc/meminfo');

然后解析文件.

有人知道Windows的等效方法吗?我愿意接受任何建议.

Is anyone aware of an equivalent method for Windows? I'm open to any suggestions.

我们有一个解决方案(但是StackOverflow不允许我回答我自己的问题):

exec( 'systeminfo', $output );

foreach ( $output as $value ) {
    if ( preg_match( '|Total Physical Memory\:([^$]+)|', $value, $m ) ) {
        $memory = trim( $m[1] );
}

这不是最优雅的解决方案，而且速度很慢，但是很适合我的需求.

Not the most elegant solution, and it's very slow, but it suits my need.

推荐答案

您可以通过exec执行此操作:

You can do this via exec:

exec('wmic memorychip get capacity', $totalMemory);
print_r($totalMemory);

这将打印(在我的具有2x2和2x4块RAM的机器上):

This will print (on my machine having 2x2 and 2x4 bricks of RAM):

Array
(
    [0] => Capacity
    [1] => 4294967296
    [2] => 2147483648
    [3] => 4294967296
    [4] => 2147483648
    [5] =>
)

您可以通过使用

echo array_sum($totalMemory);

然后将得到12884901888.要将其转换为千字节，兆字节或千兆字节，请分别除以1024，例如

which will then give 12884901888. To turn this into Kilo-, Mega- or Gigabytes, divide by 1024 each, e.g.

echo array_sum($totalMemory) / 1024 / 1024 / 1024; // GB

查询总RAM的其他命令行方法可以在

Additional command line ways of querying total RAM can be found in

https://superuser .com/questions/315195/是要在Windows中找到可用内存的命令

另一种编程方式是通过COM:

Another programmatic way would be through COM:

// connect to WMI
$wmi = new COM('WinMgmts:root/cimv2');

// Query this Computer for Total Physical RAM
$res = $wmi->ExecQuery('Select TotalPhysicalMemory from Win32_ComputerSystem');

// Fetch the first item from the results
$system = $res->ItemIndex(0);

// print the Total Physical RAM
printf(
    'Physical Memory: %d MB',
    $system->TotalPhysicalMemory / 1024 /1024
);

有关此COM示例的详细信息，请参见:

For details on this COM example, please see:

http://php.net/manual/zh/book.com.php
MSDN:构建Moniker字符串
MSDN:Win32_ComputerSystem课

http://php.net/manual/en/book.com.php
MSDN: Constructing a Moniker String
MSDN: Win32_ComputerSystem class

您可能可以从其他Windows API获得此信息，例如 .NET API..

You can likely get this information from other Windows APIs, like the .NET API., as well.

在Windows上也有PECL扩展名可以做到这一点:

There is also PECL extension to do this on Windows:

win32_ps_stat_mem —检索有关全局内存利用率的统计信息. /a>

根据文档，它应该返回一个数组，其中包含一个名为total_phys的键，该键对应于"总物理内存量."

According to the documentation, it should return an array which contains (among others) a key named total_phys which corresponds to "The amount of total physical memory."

但是，由于它是PECL扩展名，因此您首先必须将其安装在计算机上.

But since it's a PECL extension, you'd first have to install it on your machine.

这篇关于在Windows上使用PHP获取可用的系统总内存的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！