time_sleep_until Make the script sleep until the specified time


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

成功时返回 TRUE, 或者在失败时返回 FALSE.

更新日志

版本 说明
5.3.0 This function is now available on Windows platforms.

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(microtime(true)+0.2));

?>

注释

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

参见


«  time_nanosleep
» tmpfile
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