time_sleep_until

time_sleep_until

(PHP 5 >= 5.1.0RC1)

time_sleep_until --  Make the script sleep until the specified time

Description

bool time_sleep_until ( float timestamp )

This function will make the script sleep until the specified timestamp. If the specified timestamp is in the past, time_sleep_until() will generate a E_WARNING and return FALSE.

Note: This function is not implemented on Windows platforms.

Parameters

timestamp

The timestamp when the script should wake.

Return Values

Returns TRUE on success or FALSE on failure.

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(time()+0.2));

?>

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