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PHP program execution/termination

Posted on 2003-03-27
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Last Modified: 2006-11-17
Here's what I'd like to do... someone please tell me if its possible and how I might accomplish it:

I've got an external executable written in C and compiled. What it does is not important but it has the potential to run for a VERY long time.

I would like to make PHP execute this program but for a maximum of about 30 seconds so as not to delay the loading of the page significantly. If possible, to actually display an animated
"Thinking..."
gif before the program is executed (not sure how I would accomplish this).

Basically, I'd like php to execute the program, gathering its output in an array, but then kill the process if its taking too long so the page can finish loading and the visitors arent made to wait too long.

Possible?
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Question by:jmfreema
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6 Comments
 
LVL 15

Expert Comment

by:VGR
ID: 8221362
make it differently.
Use a hidden frame that "launches and surveys" the external program
During this time, the visitors have a fully functional site for themselves 8-)

I even use an IFRAME for this, on a site that hsa exactky the same problem (user access during a loooong update via the Net)
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LVL 15

Accepted Solution

by:
VGR earned 165 total points
ID: 8221385
in the IFRAME, the people can follow the progression of the update running completely independently from their surfing of the site.

I synchronize both processes via the DB
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Author Comment

by:jmfreema
ID: 8584689
Thanks anyway VGR: that answers a question, just not the one I asked ;)

I'm closing this just in the interest of cleanliness, but I still have to figure out how to do this. I think I might have to re-write the C code to terminate if too much time has passed.

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Author Comment

by:jmfreema
ID: 8584829
:( Is there any way to change a grade once its given? I meant for that to be a 'B'
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LVL 15

Expert Comment

by:VGR
ID: 8585105
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