time_sleep_until

(PHP 5 >= 5.1.0, PHP 7)

time_sleep_until — Make the script sleep until the specified time

Description

bool time_sleep_until ( float $timestamp )

Makes the script sleep until the specified timestamp.

Parameters

timestamp

The timestamp when the script should wake.

Return Values

Returns TRUE on success or FALSE on failure.

Changelog

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

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.