Re: Starting a background process and reporting failure if applicable

Thank you for the idea of user's browser to initiate the additional request! In this case, I would prefer it to be done in the background (not affecting the response to the browser) and not depending on the user/browser. Janis pirmd., 2020. g. 17. aug., plkst. 21:52 — lietotājs Tedd Sperling (< tedd.sperling@gmail.com>) rakstīja: > > > > On Aug 17, 2020, at 9:14 AM, Jānis Elmeris <janis.elmeris@lv.lv> wrote: > > > > Hello! > > > > I would like to start a PHP script in the background from within another > PHP script. I would like to monitor all error cases properly. > > > > Is there an easy way to see if that background script was started > successfully? The background script would write its errors into an error > log that I'm monitoring. But what about starting the script itself? > > > > I'm trying to start a background script like this: > > > > exec('nohup php sleeps.php > /tmp/tt 2>&1 &', $output, $status); > > error_log('execute_shell: ' . var_export(['status' => $status, > > 'output' > => $output], true)); > > exec('nohup php sleeps_nonexist.php > /tmp/tt 2>&1 &', $output, > > $status); > > error_log('execute_shell: ' . var_export(['status' => $status, > > 'output' > => $output], true)); > > > > The first exec runs all right in the background > > (asynchronously). > > The second one behaves in exactly the same way ($status === 0 ���q�F > > Hm��Y), even > though file "sleeps_nonexist.php" does not exist. > > > > Running in the command line manually, this would give status > > 0: > > nohup php sleeps.php > /tmp/tt 2>&1 > > echo $? > > > > This would give status 1: > > nohup php sleeps_nonexist.php > /tmp/tt 2>&1 > > echo $? > > > > Regards, > > Janis > > > Janis: > > Look at header — it’s much simpler. > > For example, I often use it to start another script from within a script, > like so: > > if ($auth == 0) > { > // send user to log on page > header('Location:log-on.php'); > exit(); > } > > See: > > https://www.php.net/manual/en/function.header.php > > Cheers, > > Tedd > > Tedd Sperling > tedd.sperling@gmail.com