PHP Manual: 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.

time_sleep_until