time_sleep_until

(PHP 5 >= 5.1.0)

time_sleep_until — Make the script sleep until the specified time

说明

bool time_sleep_until ( float $timestamp )

Makes the script sleep until the specified timestamp .

参数

timestamp: The timestamp when the script should wake.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

错误／异常

If the specified timestamp is in the past, this function will generate a E_WARNING.

范例

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));

?>

注释

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

Note: 本函数未在 Windows 平台下实现。

参见

sleep()
usleep()
time_nanosleep()


	PHP5中文手册 time_nanosleep uniqid Misc. PHP Manual time_sleep_until (PHP 5 >= 5.1.0) time_sleep_until — Make the script sleep until the specified time 说明 bool time_sleep_until ( float `$timestamp` ) Makes the script sleep until the specified `timestamp` . 参数 `timestamp` The timestamp when the script should wake. 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。错误／异常 If the specified `timestamp` is in the past, this function will generate a `E_WARNING`. 范例 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)); ?>` 注释 Note: All signals will be delivered after the script wakes up. Note: 本函数未在 Windows 平台下实现。参见 sleep() usleep() time_nanosleep() time_nanosleep uniqid Misc. PHP Manual