脚本运行时是否可以动态地重新加载PHP代码? [英] Is it possible to dynamically reload PHP code while script is running?
问题描述
我有一个使用PHPSockets的多人服务器，因此完全用PHP编写.
I'm having a multiplayer server that's using PHPSockets, and thus is written entirely in PHP.
当前，每当我对PHP服务器脚本进行任何更改时，都必须终止该脚本，然后重新开始.这意味着所有在线用户都已断开连接(通常不会出现问题，因为目前没有多少用户).
Currently, whenever I'm making any changes to the PHP server-script I have to kill the script and then start it over again. This means that any users online is disconnected (normally not a problem because there aren't so many at the moment).
现在，我正在重写服务器脚本，以使用自定义PHP类并对内容进行一些整理(您不希望知道它今天看起来多么讨厌).今天我在想:难道不必重新启动整个脚本就可以对php源进行更改吗?".
Now I am rewriting the server-script to use custom PHP classes and sorten things up a little bit (you don't want to know how nasty it looks today). Today I was thinking: "Shouldn't it be possible to make changes to the php source without having to restart the whole script?".
例如，我计划有一个main.php文件，其中包括user.php和game.php文件，其中user.php包含类MyUser，而game.php包含类MyGame. 现在，我想对user.php进行更改并重新加载"服务器，以便对user.php所做的更改在不断开任何在线用户的情况下生效吗?
For example, I'm planning on having a main.php file that is including user.php which contains the class MyUser and game.php which contains the class MyGame. Now let's say that I would like to make a change to user.php and "reload" the server so that the changes to user.php goes into effect, without disconnecting any online users?
I tried to find other questions that answered this, the closest I got is this question: Modifying a running script and having it reload without killing it (php) , which however doesn't seem to solve the disconnection of online users.
更新
我对此的解决方案是:
- 在特殊场合，包括文件external.php，该文件可以访问一些变量，并根据需要使用它们.这样做时，我必须确保代码中没有错误，因为如果尝试访问不存在的方法，整个服务器将崩溃.
- 将整个内容重写为Java ，这使我可以使用动态类重载来添加插件系统.奇迹般有效.再见PHP.
- At special occations, include the file external.php, which can access a few variables and use them however it'd like. When doing this, I had to make sure that there were no errors in the code as the whole server would crash if I tried accessing a method that did not exist.
- Rewrite the whole thing to Java, which gave me the possibility of adding a plugin system using dynamic class reloading. Works like a charm. Bye bye PHP.
推荐答案
是否不必重新启动整个脚本就可以对php源进行更改?
Shouldn't it be possible to make changes to the php source without having to restart the whole script?
[...]
我正计划建立一个包含user.php的main.php文件 其中包含类MyUser
I'm planning on having a main.php file that is including user.php which contains the class MyUser
就您而言，您不能.类只能在运行的脚本中定义一次.您需要重新启动脚本以重新定义这些类.
In your case, you can't. Classes can only be defined once within a running script. You would need to restart the script to have those classes redefined.
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