Re: Starting a background process and reporting failure if applicable

> 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), > 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