time_sleep_until

说明

This function will make the script sleep until the specified timestamp. If the specified timestamp is in the past, time_sleep_until() will generate a E_WARNING and return FALSE.

参数

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

例

例子 1. A time_sleep_until() example <?php //returns false and generates a warning var_dump(time_sleep_until(time()-1)); // may only work on faster computers, will sleep up to 0.2 seconds var_dump(time_sleep_until(time()+0.2)); ?>

参见