How can I get the CPU and Memory useage

Question

I want to know the memory and CPU usage in php, because I\'m using cronejobs sometimes the CPU is overloaded so in this case I don\'t wan to start more process, I just want

Answer 1

I recently have some issue to get CPU load and i feel like sharing it .

Here was my solution witch help me out :

My situation :

I've use Zend Framework 1.2 to build monitoring application and i want to get cpu load and show it on the page . after doing some research i found out i could use COM Object and query the Win OS with wmi so i put these code to my init function :

    /* Initialize action controller here */
    $this->wmi = new COM('winmgmts:{impersonationLevel=impersonate}//./root/cimv2');

    if (!is_object($this->wmi)) {
        throw new GetInfoException('This needs access to WMI. Please enable DCOM in php.ini and allow the current user to access the WMI DCOM object.');
    }

• You could use it anywhere you want , i have use it in the init function beacuse of Zend structure .

And i added an Action and an function to use that wmi and get cpu load any time i want by calling that function .

public function cpuloadAction()
{
    echo json_encode($this->getLoad());
    exit();
}

private function getLoad() {

    // Time?
    if (!empty($this->settings['timer']))
        $t = new LinfoTimerStart('Load Averages');

    $load = array();
    foreach ($this->wmi->ExecQuery("SELECT LoadPercentage FROM Win32_Processor") as $cpu) {
        $load[] = $cpu->LoadPercentage;
    }
    //return round(array_sum($load) / count($load), 2) . "%";
    return (int)round(array_sum($load) / count($load), 2);
}

• beacuse i what real time data i put these code in a function Otherwise you could write it in single non Object Oriented PHP file.

Hope it help .