(PHP 5 >= 5.1.0)
time_sleep_until — Make the script sleep until the specified time
$timestamp
)
Makes the script sleep until the specified
timestamp
.
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.