PHP CLI模式下的多进程应用(2)

        Shell Executor version 1.0.0 by laruence
EOD;
while
(true)
{
$prompt = "\n{$user}$ ";
        $input  = readline($prompt);

        readline_add_history($input);
        if
($input == 'quit')
{
break;
        }
process_execute($input . ';');
}
exit(0);

function
process_execute($input)
{
$pid = pcntl_fork(); //创建子进程
if
($pid == 0)
{//子进程
$pid = posix_getpid();
                echo
"* Process {$pid} was created, and Executed:\n\n";
                eval($input); //解析命令
exit;
        }
else
{//主进程
$pid = pcntl_wait($status, WUNTRACED); //取得子进程结束状态
if
(pcntl_wifexited($status))
{
echo
"\n\n* Sub process: {$return['pid']} exited with {$status}";
                }
}
}