How to get current cpu load from a PHP script on Windows?

Question

How can a php script get current cpu load in percentage? On linux platform we have sys_loadavg()[0], that is not present on Windows.

Answer 1

So far I know there is three methods:

COM call

    $com = new COM('winmgmts:{impersonationLevel=impersonate}');
    $cpus = $com->execquery('SELECT LoadPercentage FROM Win32_Processor');
    foreach ($cpus as $cpu) { $load = $cpu->LoadPercentage; break; }

com_dotnet extension required.

console call to wmic

    exec('wmic cpu get LoadPercentage', $p);
    return $p[2];

console call to typeperf

    $_ENV['typeperfCounter'] = '\processor(_total)\% processor time';
    exec('typeperf -sc 1 "'.$_ENV['typeperfCounter'].'"', $p);
    $line = explode(',', $p[2]);
    $load = trim($line[1], '"');

1. Note: $_ENV['typeperfCounter'] should be set according system locale. For ru_RU it is

   $_ENV['typeperfCounter'] = '\Процессор(_total)\% загруженности процессора';
   

All they running very slowly (be honestly I think they block execution of current thread for 1 sec to measure load).

Answer 2

Check here my reply. Function that is compatible with Windows / Linux OS, tested.

In Linux returns an array of 3 values In Windows return an array of 1 value

How to get CPU usage and RAM usage without exec?