Make the script sleep until the specified time
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    time_sleep_until

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    time_sleep_until — Make the script sleep until the specified time

    Description

    time_sleep_until(float $timestamp): bool

    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.

    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 warningvar_dump(time_sleep_until(time()-1));// may only work on faster computers, will sleep up to 0.2 secondsvar_dump(time_sleep_until(microtime(true)+0.2));?>

    Notes

    Note: All signals will be delivered after the script wakes up.

    See Also