The default value is "1", meaning every second for a SECONDLY rule,
or every minute for a MINUTELY rule, every hour for an HOURLY rule,
every day for a DAILY rule, every week for a WEEKLY rule, every month
for a MONTHLY rule and every year for a YEARLY rule.
public setInterval ( integer $interval ) | ||
$interval | integer | Positive integer that represents how often the recurrence rule repeats. |