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[RESOLVED] Comet with PHP on Apache

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Jul 14.2008

I’m developing a COMET based program using the Multipart-x-mixed-replace method and I’m having an issue. I have a while(1) loop in place and the first time I run it, it’s fine. If I close out of the window and go back into it, it doesn’t work. The issue I’m seeing is that apache/PHP isn’t closing that script and it continues to run. Any ideas on how to get it stop when the window is closed?

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@SyCoJul 14.2008 — Once the script starts closing the browser can't stop it. You could add an exit condition to the script to stop it afte x number of loops. If it runs the first time it should run again unless the loop is endless and eating up resources? Your issue sounds more like a scripting error than the Apache set up but without knowing a lot more there's no way to guess any further. Your script shouldn't be running endlessly unless that's what you've told it to do.
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@ellisglauthorJul 15.2008 — I figured it out. Basically, I start the COMET script with a $_GET argument of the user's ID. Then, I have the script get the pid (getmypid()). After I have the PID I update the DB that contains the the user's ID with the PID. Then I have a javascript that detects when the window is closed and do an ajax call to another script with a $_GET argument of the user's id. That script then pulls the PID for that script then runs exec('kill '.$pid);

It could be made a bit more secure thou.
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