PHP的异步调用，并从后台作业得到响应 [英] php asynchronous call and getting response from the background job
问题描述
我已经做了一些关于这个论题谷歌搜索，但没有找到答案我的问题。
I have done some google search on this topic and couldn't find the answer to my question.
我想实现的是以下内容：
What I want to achieve is the following:
- 客户端做出一个函数异步调用服务器
- 服务器在后台运行该函数（因为该函数是费时），并且客户端不挂在其间
- 客户端不断向服务器请求后台作业的状态通话
您可以给我一些建议关于解决我的问题？
Can you please give me some advices on resolving my issue?
非常感谢你！ ^ - ^
Thank you very much! ^-^
推荐答案
您没有指定异步调用是什么语言，但我假设两端PHP。
我觉得最优雅的方式是这样的：
You are not specifying what language the asynchronous call is in, but I'm assuming PHP on both ends. I think the most elegant way would be this:
-
HTML页面加载，定义了一个随机密钥的操作（例如，使用
兰特（）或已经可用的会话ID [要小心，虽然是同一个用户可以启动两个操作]）
HTML page loads, defines a random key for the operation (e.g. using
rand()or an already available session ID [be careful though that the same user could be starting two operations])
HTML网页，使Ajax调用PHP脚本 start_process.php
HTML page makes Ajax call to PHP script to start_process.php
start_process.php 执行 EXEC /path/to/scriptname.php 启动该进程;看到上 EXEC 用户投稿注意事项（ ） 的建议，如何在后台启动一个进程。哪一个是你的权利，主要取决于你的操作系统。
start_process.php executes exec /path/to/scriptname.php to start the process; see the User Contributed Notes on exec() on suggestions how to start a process in the background. Which one is the right for you, depends mainly on your OS.
long_process.php 经常撰写的身份进入一个状态文件，生成您的Ajax页面随机密钥来命名
long_process.php frequently writes its status into a status file, named after the random key that your Ajax page generated
HTML页面将频繁调用 show_status.php 的读出状态文件，并返回进度。
HTML page makes frequent calls to show_status.php that reads out the status file, and returns the progress.
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