限制函数或命令 PHP 的执行时间

问题描述

是否可以仅对命令或仅对函数设置时间限制，例如:

Hi is there a possibility to set time limit only to a command or only to a function eg:

function doSomething()
{
    //..code here..

    function1();

    //.. some code here..

}

我只想为function1设置时间限制.

I want to set time limit only to function1.

有退出 set_time_limit 但我认为这设置了整个脚本的时间限制.有人有什么想法吗?

There exits set_time_limit but I think this sets the time limit to whole script. Anybody any Idea?

推荐答案

set_time_limit() 确实在全局运行，但可以在本地重置.

set_time_limit() does run globally, but it can be reset locally.

设置允许脚本运行的秒数.如果达到了，该脚本返回一个致命错误.默认限制为 30 秒，或者，如果存在，php.ini 中定义的 max_execution_time 值.

Set the number of seconds a script is allowed to run. If this is reached, the script returns a fatal error. The default limit is 30 seconds or, if it exists, the max_execution_time value defined in the php.ini.

调用时，set_time_limit() 从零重新启动超时计数器.在换句话说，如果超时是默认的 30 秒，和 25 秒进入脚本执行调用如 set_time_limit(20) 时，脚本将在超时前总共运行 45 秒.

When called, set_time_limit() restarts the timeout counter from zero. In other words, if the timeout is the default 30 seconds, and 25 seconds into script execution a call such as set_time_limit(20) is made, the script will run for a total of 45 seconds before timing out.

我没有测试过，但你可以在本地设置，离开时重置

I've not tested it, but you may be able to set it locally, resetting when you leave the

<?php
set_time_limit(0);  // global setting

function doStuff()
{
    set_time_limit(10);   // limit this function
    //  stuff
    set_time_limit(10);   // give ourselves another 10 seconds if we want
    //  stuff
    set_time_limit(0);    // the rest of the file can run forever
}

// ....
sleep(900);
// ....
doStuff();  // only has 10 secs to run
// ....
sleep(900);
// ....

set_time_limit()... 在确定脚本运行的最长时间时，不包括在脚本执行之外发生的活动上花费的任何时间，例如使用 system() 的系统调用、流操作、数据库查询等.在测量时间是真实的 Windows 上，情况并非如此.

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