在Windows上使用PHP获取可用的系统总内存 [英] Get total available system memory with PHP on Windows

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.

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