time_sleep_until
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
time_sleep_until —
Make the script sleep until the specified time
Description
function time_sleep_until(
float $timestamp):
bool
Parameters
timestamp-
The timestamp when the script should wake.
Return Values
Returns true on success or false on failure.
Errors/Exceptions
If the specified timestamp is in the past, this
function will generate a E_WARNING.
Examples
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));
?>
Notes
Note:
All signals will be delivered after the script wakes up.
time_nanosleep
Misc. Functions