(PHP 5 >= 5.1.0, PHP 7)
time_sleep_until — Make the script sleep until the specified time
time_sleep_until ( float $timestamp ) : bool
Makes the script sleep until the specified timestamp
.
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 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(microtime(true)+0.2)); ?>
Note: All signals will be delivered after the script wakes up.
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.time-sleep-until.php