(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.
| Version | Description |
|---|---|
| 5.3.0 | This function is now available on Windows platforms. |
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.