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讨论：如果程序运行超过30秒怎么办

作者 smail 发布于 0000-00-00 分类：php基础编程

一般的都是限制程序运行最多30秒,超过以后就被终止,请问如果程序运行的时间很长,需要30秒以上该怎么办

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发表人 sdfsdfsafsaf 发表于 09月30日

发表人 smail 发表于 09月30日

发表人 stvsui 发表于 09月30日

发表人 geluli 发表于 09月30日

发表人小B 发表于 09月30日

发表人 coolker 发表于 09月30日

顶一贴功德无量！

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Re: 如果程序运行超过30秒怎么办

2003年09月30日发表人 sdfsdfsafsaf

>set_time_limit
(PHP 3, PHP 4 )

set_time_limit -- Limits the maximum execution time
Description
void set_time_limit ( int seconds)

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 configuration file. If seconds is set to zero, no time limit is imposed.

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.

set_time_limit() has no effect when PHP is running in safe mode. There is no workaround other than turning off safe mode or changing the time limit in the configuration file.

注: The set_time_limit() function and the configuration directive max_execution_time only affect the execution time of the script itself. Any time spent on activity that happens outside the execution of the script such as system calls using system(), the sleep() function, database queries, etc. is not included when determining the maximum time that the script has been running.

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Re: 如果程序运行超过30秒怎么办

2003年09月30日发表人 smail

QUOTE:

最初由 sdfsdfsafsaf 发布
[B]set_time_limit
(PHP 3, PHP 4 )

set_time_limit -- Limits the maximum execution time
Description
void set_time_limit ( int seconds)

Set the number of seconds a script is allowed to run. If th...以下省略 [/B]

我是想有没有可能在循环的过程中每循环一定数量级(比如100次或1000次)程序自动停顿一下,然后接着运行,就类似与VB里边的doevents的功能
很多论坛比如VBB在备份数据的时候好像都有这个功能,不知道是怎么实现的