(PECL ev >= 0.2.0)
EvPeriodic::set — Configures the watcher
$offset
,
double
$interval
)(Re-)Configures EvPeriodic watcher
offset
The same meaning as for EvPeriodic::__construct() . See Periodic watcher operation modes
interval
The same meaning as for EvPeriodic::__construct() . See Periodic watcher operation modes
没有返回值。