exec()与超时 [英] exec() with timeout

问题描述

我正在寻找一种可以超时运行PHP进程的方法.目前，我只是在使用 exec() ，但它不提供超时选项.

I'm looking for a way to run a PHP process with a timeout. Currently I'm simply using exec(), but it does not provide a timeout option.

我还尝试使用 proc_open() 并使用

What I also tried is opening the process using proc_open() and using stream_set_timeout() on the resulting pipe, but that didn't work either.

那么，有什么方法可以在超时的情况下运行命令(准确地说是PHP命令)? (PS:这是针对max_execution_time限制失败的情况，因此无需建议.)

So, is there any way to run a command (a PHP command to be precise) with a timeout? (PS: This is for cases where the max_execution_time limit fails, so no need to suggest that.)

(顺便说一句，我还需要检索该过程的返回码.)

(By the way, I also need to retrieve the return code of the process.)

推荐答案

我在这个主题上进行了一些搜索，得出的结论是，在某些情况下(如果使用的是Linux)，可以使用超时"命令.相当灵活

I've searched a bit on this topic and came to conclusion that in some case (if you are using linux) you can use 'timeout' command. It's pretty flexible

Usage: timeout [OPTION] DURATION COMMAND [ARG]...
  or:  timeout [OPTION]

在我的特殊情况下，我试图从PHP运行sphinx索引器，有点像迁移数据脚本，所以我需要为sphinx文档重新索引

in my particular case I'm trying to run sphinx indexer from PHP, kinda migration data script so I need to reindex my sphinx documents

exec("timeout {$time} indexer --rotate --all", $output);

然后，我将分析输出并决定再尝试一次，或者抛出异常并退出脚本.

Then I'm going to analyze output and decide to give it one more try, or throw an exception and quit my script.

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