use php\lang\Process;
use process\ProcessHandle;

$process = new Process(['cmd', '/c', 'calc.exe']);
$processHandle = new ProcessHandle($process->start());

echo "PID: ", $processHandle->pid(), "\n";
echo "Info: ", print_r($processHandle->info(), true), "\n";

$process = new Process(['cmd', '/c', 'calc.exe']);
$processHandle = new ProcessHandle($process->start());

$success = $processHandle->destroy();

$processHandles = $processHandle->children();

foreach ($processHandles as $handle) {
   var_dump($handle->info());
}

$allProcesses = ProcessHandle::allProcesses();

$pid = 13894;
$processHandler = ProcessHandle::ofPid($pid);

$processHandler = ProcessHandle::current();