如何计算PHP脚本(Linux)中的处理器核心数? [英] How to calculate number of processor cores in PHP script (linux)?

问题描述

我正在尝试使用pthreads进行多线程处理.我正在用构造函数创建池.第一个参数是工人数.

I'm trying to use pthreads for multithreading. I'm creating pool with constructor. First parameter is number of Workers.

$pool = new Pool(8, 'WebWorker');

我想自动检测处理器核心的数量.像这样:

I want to detect count of processor cores automatically. Something like this:

$pool = new Pool(get_processor_cores_number(), 'WebWorker');

PHP怎么可能?

推荐答案

如果服务器是Linux计算机，则可以使用以下代码段进行操作:

If the server is a Linux machine you can do it with the following snippet:

$ncpu = 1;

if(is_file('/proc/cpuinfo')) {
    $cpuinfo = file_get_contents('/proc/cpuinfo');
    preg_match_all('/^processor/m', $cpuinfo, $matches);
    $ncpu = count($matches[0]);
}

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