我可以在后台继续脚本中的现有会话并修改值吗？

Question

I am creating a php scripts that runs on background. When the script completes, I want it to change a flag in session started from Web Interface. I tried passing the session id to the script and starting the same session with id but it keeps on loop.

I tried passing the session id to the script and starting the same session with id it doesn't work.

WebInterface.php

$_SESSION["flag"] = false;
shell_exec("php BackgroundScript.php ".session_id()." &");

BackgroundScript.php

$id = $argv[1];
session_id($id);
session_start();
//do things
$_SESSION["flag"] = true;

when I try initializing the session, the code doesnot seem to complete.

Answer 1

What you could try is to pretent a session cookie exists, like this:

WebInterface.php

$_SESSION["flag"] = false;
shell_exec("php BackgroundScript.php ".session_id()." &");

BackgroundScript.php

$id = $argv[1];
$_COOKIE["PHPSESSID"] = $id;
session_start();
//do things
$_SESSION["flag"] = true;

This can work under some circumstances, but also might not.

See: https://stackoverflow.com/a/7578766/3986005

I think a better solution would be to communicate through a database or file.