$max_msec, ]); $s = microtime(1); echo "start\n"; $flag = 1; go(function () use (&$flag, $max_msec, $s){ echo "coro 1 start to loop for $max_msec msec\n"; $n = 10000000; $i = 0; while($n--) { $i ++; } echo "coro 1 can exit\n"; $t = microtime(1); $u = $t-$s; echo "coro 1 use time ".(($t-$s) * 1000)." ms\n"; }); $t = microtime(1); $u = $t-$s; echo "shedule use time ".($u * 1000)." ms\n"; go(function () use (&$flag){ echo "coro 2 set flag = false\n"; $flag = false; }); echo "end\n";