phpマルチプロセスの実現

";
                exit($i);
        }
}
while (pcntl_waitpid(0, $status) != -1) {
        $status = pcntl_wexitstatus($status);
        echo "Child $status completed
";
}

In child 4
Child 4 completed
In child 1
Child 1 completed
In child 2
Child 2 completed
In child 3
Child 3 completed
In child 5
Child 5 completed