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Home Backend Development PHP Tutorial 关于set_time_limit(0)的问题?

关于set_time_limit(0)的问题?

Jun 23, 2016 pm 01:58 PM

请问在iis服务器下,php中的set_time_limit(0)为什么没有作用?


回复讨论(解决方案)

怎么个不起作用 体现在哪?

set_time_limit(0);
$time_start = time(true);
$chk = false;
while ($chk === false) {
      $time_end = time(true);
      if ($time_end - $time_start > 80) {
     printf("time out!");
     $chk = true;
      }
}
这段代码没有打出time out。而且报500的错误。

表示没得iis下用过php。。。

500错误是不是php.ini中display_errors = On没设置,还有就是while循环 $time_end - $time_start应该一直等于0吧

我在apache环境下测试是成功的 不知道是不是跟服务有关

500错误是不是php.ini中display_errors = On没设置,还有就是while循环 $time_end - $time_start应该一直等于0吧


为什么$time_end - $time_start应该一直等于0?

我在apache环境下测试是成功的 不知道是不是跟服务有关


在iis中应该怎么设置呢?

我把80改小一点就可以。

超过了最大执行时间? 打开错误提示功能看看。

哦,加了set_time_limit(0); 那跟最大执行时间没关系。

打开错误提示功能看是否有报错。

几个原因排查一下:
1. php是否运行在安全模式下,如果是的话,set_time_limit是无效的。

2. IIS服务器本身配置了超时,且优先级更高,即使你 php设置了不超时,由于服务器的超时机制,还是会做超时处理,因此在超时后会触发致命错误,这就是导致500错误的原因。
参考一下这篇文章:http://www.iisadmin.co.uk/?p=7

哦,加了set_time_limit(0); 那跟最大执行时间没关系。

打开错误提示功能看是否有报错。


我把错误提示功能打开,在log中没有发现有错误提示。

问题解决了,果然是iis7的问题:
IIS7->FastCGI设置->双击"php-cgi.exe"->"活动超时" 项默认是设置为70,我改为最大值,2592000.

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