You might also use a timer variable to keep track of how many ticks of the clock you've been in the current state.
还可以使用计时器变量记录保持当前状态的时钟嘀嗒数。
2
For example, you could set a cron job to run this script once per hour to help you keep track of how many PHP sessions are being used around the clock.
An outer layer on each of the eight surrounding pyramids selectively blocks out portions of the structures throughout the month, keeping track of the lunar cycle like hands on a clock.