为网页的每个请求创建新流程吗?
这可能是一个基本问题，但是每次用户从服务器调用php文件时，都会从该服务器创建新进程吗?
It might be a basic question but everytime a user call a php file from a server, does it create a new process from that server ?
例如，我有一个基本形式(假设在index.php上)，它将文本提交到另一个php文件. 在该php文件中，我打印 posix_getpid().
For example, I have a basic form (let's say on index.php) that submits a text to another php file. In that php file, I print the posix_getpid().
我在index.php的两个选项卡中打开并填写了文本，最后我得到了 每个标签上有两个不同的pid.
I opened in two tabs my index.php an filled in and submitted a text and I ended up with two different pid on each tab.
这使我得出一个结论，即服务器可能为每个脚本创建一个新进程. 我说的对吗?
Which lead me to the conclusion that a server probably create a new process for each script. Am I right ?
干杯！
我假设您正在将apache作为Web服务器运行.
I assume that you're running apache as your web server.
当请求进入时，apache启动一个新线程.然后在这个新线程上调用PHP，因此为什么每次都会获得一个新的进程ID.
When a request comes in, apache starts a new thread. PHP is then invoked on this new thread, hence why you get a new process id every time.
这当然被大大简化了.
I recommend reading this article for a deeper understanding.
平台之间的过程似乎有所不同.它按照我在Windows上所描述的方式工作，但是在Unix上执行了多个Apache进程.
It seems that the process differs between platforms. It works the way I described above on Windows, but multiple apache processes are executed on Unix.