php如何批量后台操作进程

function run($filenames)
{
    foreach ($filenames as $filename) {
        $exec_str = 'php  ' . " $filename >> ./service.log & ";
        exec($exec_str);
    }
}

run(['orderService.php', 'userService.php']);

$exec_str = 'ps -ef|grep php|grep -v grep|cut -c 9-15|xargs kill -9';
exec($exec_str);

$exec_str = "ps -aux | grep php | grep -v grep | awk '{print $2}' | xargs kill -9";
exec($exec_str);

 grep -rn "php" .
 或者
 find -type f -name "*.php" | xargs grep "php"

cat /proc/sys/kernel/pid_max

echo 956856 >  /proc/sys/kernel/pid_max