(PHP 5 >= 5.1.0)
time_sleep_until — Make the script sleep until the specified time
Makes the script sleep until the specified timestamp .
The timestamp when the script should wake.
Returns TRUE on success or FALSE on failure.
If the specified timestamp is in the past, this function will generate a E_WARNING.
Example #1 A time_sleep_until() example
<?php//returns false and generates a warningvar_dump(time_sleep_until(time()-1));// may only work on faster computers, will sleep up to 0.2 secondsvar_dump(time_sleep_until(time()+0.2));?>
Note: All signals will be delivered after the script wakes up.
Note: This function is not implemented on Windows platforms.
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