PHP的pcntl多进程用法实例

$max = 800000;
$workers = 20;
$pids = array();
for($i = 0; $i < $workers; $i++){
$pids[$i] = pcntl_fork();
switch ($pids[$i]) {
case -1:
echo "fork error : {$i} rn";
exit;
case 0:
$param = array(
'lastid' => $max / $workers * $i,
'maxid' => $max / $workers * ($i+1),
);
$this->executeWorker($input, $output, $param);
exit;
default:
break;
}
}
foreach ($pids as $i => $pid) {
if($pid) {
pcntl_waitpid($pid, $status);
}
}