并行执行功能 [英] Executing functions in parallel

问题描述

我有一个函数，该函数需要遍历数组中的约20K行，并对每个行应用一个外部脚本.这是一个缓慢的过程，因为PHP在继续下一行之前正在等待脚本执行.

I have a function that needs to go over around 20K rows from an array, and apply an external script to each. This is a slow process, as PHP is waiting for the script to be executed before continuing with the next row.

为了使此过程更快，我正在考虑同时在不同部分中运行该功能.因此，例如，将行0到2000作为一个函数，将行2001到4000作为另一个函数，依此类推.我该如何整齐地做到这一点?我可以进行不同的cron作业，每个函数使用不同的参数:myFunction(0, 2000)，然后使用myFunction(2001, 4000)进行另一个cron作业，等等，但这似乎不太干净.这样做有什么好方法?

In order to make this process faster I was thinking on running the function in different parts, at the same time. So, for example, rows 0 to 2000 as one function, 2001 to 4000 on another one, and so on. How can I do this in a neat way? I could make different cron jobs, one for each function with different params: myFunction(0, 2000), then another cron job with myFunction(2001, 4000), etc. but that doesn't seem too clean. What's a good way of doing this?

推荐答案

如果您想在PHP中执行并行任务，我会考虑使用 pcntl_fork()，但是我更喜欢基于任务的实际工人.

If you'd like to execute parallel tasks in PHP, I would consider using Gearman. Another approach would be to use pcntl_fork(), but I'd prefer actual workers when it's task based.

这篇关于并行执行功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！