symfony: [Process] Process doesn't start if calling script terminates to quickly

I am attempting to use the Process component to spaw a second (long running) process. I use ProcessBuilder to create the process, then call $process->start(). The process will only actually execute if I make my calling script sleep(1). If it terminates immediately, the new process will not execute.

Is there a way to solve this?

About this issue

Original URL
State: closed
Created 11 years ago
Comments: 18 (12 by maintainers)

Most upvoted comments

When using Symfony’s Process class in a cli environment, it is possible to keep the process running even after the main script ends. To do this, implement your own class and overload the __destruct() method to prevent the default behaviour that stops the process by sending a SIGTERM signal.

class PersistentProcess extends Process {
  public function __destruct() {}
}

IMO, I think the Process class should allow the option to not send SIGTERM when the Process object is destroyed.

ttk on Feb 7, 2020

You should check this article

Instead of using run() to execute a process, you can start() it: run() is blocking and waits for the process to finish, start() creates a background process. One way to get feedback from a running command is to pass a callback when starting/running the process

Did you try to setup a callback ? like it’s shown in the example ?

pborreli on Mar 1, 2013