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(PHP 5 >= 5.1.0, PHP 7, PHP 8)
time_sleep_until — Make the script sleep until the specified time
Makes the script sleep until the specified
timestamp.
timestampThe timestamp when the script should wake.
If the specified timestamp is in the past, this
function will generate a E_WARNING.
Приклад #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));
?>Зауваження: All signals will be delivered after the script wakes up.