概念证明问题 [英] Proof of concept questions
问题描述
概念证明：目前我有一个网络托管服务，它支持php。
可以在php中完成以下操作吗？解释或示例将是
赞赏。
创建2个应用程序，app-1和app-2
app-1循环连续。每1秒钟，应用程序将
天的时间写入文件。
app-2读取文件并将其显示在网页上。
我想从网页上启动app-1，然后关闭网页。 App-1
继续记录文件中的时间。
稍后某个时间点...运行app-2。它打开文件并显示
内容。
现在停止app-1。
应用程序是很简单，但是在我开始开发应用程序之前，他们回答了我需要了解的一些基本问题。我认为这可能会更容易，如果我有一个假定的服务器而不是网页
仅托管？
TIA
Proof of concept: Currently I have a web hosting service and it does
support php.
Can the following be done in php? Explanations or examples would be
appreciated.
Create 2 applications, app-1 and app-2
app-1 loops continuosly. Every 1 second the application writes the time of
day to a file.
app-2 reads the file and displays it on a webpage.
I want to start app-1 from a webpage, then close the webpage. App-1
continues to log the time of day to the file.
At some later point in time...run app-2. It opens the file and displays
the contents.
Now stop app-1.
The applications are simple, but they answer a couple of basic questions I
need to know about php before I jump into developing an application. I
assume this might be easier if I have a decicated server instead of web
hosting only?
TIA
推荐答案
nop90写道：
nop90 wrote:
可以在php中完成以下操作吗？解释或示例将受到赞赏。
创建2个应用程序，app-1和app-2
app-1循环连续。每1秒钟，应用程序会将
天的时间写入文件。
是的 - 这是PHP可行的，尽管您的ISP可能没有设置
机器允许这个（PHP通常用于生成网页 - 每个网页启动
新流程/线程） - 长时间运行的流程
在这种情况下是一件坏事，网络服务器和PHP都有机制
来防止它们。
应用程序很简单，
Can the following be done in php? Explanations or examples would be
appreciated.
Create 2 applications, app-1 and app-2
app-1 loops continuosly. Every 1 second the application writes the time of
day to a file.
Yes - this is posible with PHP, although you ISP may not have setup the
machine to allow this (PHP is typically used for generating web pages - a
new process/thread is started for each web page) - long running processes
in this context are a bad thing and both webservers and PHP have mechanisms
to prevent them.
The applications are simple,
我不会上升到那个。
C.
I''m so not going to rise to that one.
C.
刻在神秘的符文上生活摇滚，comp.lang.php的
nop90的最后一句话简单说明：
Carved in mystic runes upon the very living rock, the last words of
nop90 of comp.lang.php make plain:
我想从网页启动app-1，然后关闭网页。
I want to start app-1 from a webpage, then close the webpage.
即使你的脚本没有超时（它很可能会，你的服务器设置取决于
） ，关闭网页将结束它的运行。
你最好从一个cron工作中运行它。
-
Alan Little
Phorm PHP表格处理器
http：// www .phorm.com /
Alan Little< al ** @ nospam-phorm.com>写在
新闻：Xn ************************** @ 216.196.97.131：
Alan Little <al**@n-o-s-p-a-m-phorm.com> wrote in
news:Xn**************************@216.196.97.131:
你最好从一个cron作业中运行它。
You''re better off running it from a cron job.
可以创建一个cron作业来每秒运行一次吗？当我查看我的网页
主机关于如何创建一个cron作业的信息时，我似乎记得1分钟是最小分辨率的
。
Can a cron job be created to run every second? When I looked at my web
host''s info on how to create a cron job, I seem to remember 1 minute was
the smallest resolution.
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