}
$pid = pcntl_fork();
if($pid > 0)
{
pcntl_signal(SIGINT,'stopAll') ;
$epid = pcntl_wait($status;
echo "parent process {$id}, child process {$pid}\n";
if($epid){
echo "child $epid exitmaster has a sig 2
24793
master has a sig 2
24793
parent process 24792, child process 24793
child 24793 exit