PHP: exec() doesn't run in the background even with “>/dev/null 2>&1 &”

Question

I\'m calling this in my php script:

    exec(\"gutschein.php >/dev/null 2>&1 &\");

Calling the script (generates a pdf and s

Answer 1

The browser is might waiting for a response, so let your script produce any output and terminate the "main process". a simple

die('ok');

should do the job.

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btw, forking a new process by calling exec is might not the best solution since the new process isn't a real child process - means you can't control it. you might consider using pcntl (http://php.net/manual/de/book.pcntl.php) for this purpose. but stand clear, this extension has also his pitfalls, especially in the context of a webserver.