If the web server didn't have permission to execute the app, it would
NEVER execute the app, not execute it some of the time. In fact, it
ALWAYS executes the app, it just doesn't always allow it to finish.
I log all attempts to run these apps in order to debug, so I know that
the command as passed from php will work in the command line. I copy and
paste the command from the log and it runs, even though it didn't complete
execution when called from php.
I have increased several parameters in php.ini, including memory limit
and allowed execution time. Nothing has helped. The only thing that
helps is if I wrap the app I want to run in a perl script and call the
perl script from php. That works more of the time, though it still often
breaks.
On
Wed, 21 Sep 2005, John Nichel wrote:
ernst@xxxxxxxxxxxxxxx wrote:
I don't want to crowd the list up with dead ends, so I was trying to
respond only to you.
<snip>
You'll get more chances at finding the solution to this with the list's eyes
on it rather than just myself. Plus, it provides an archive of the problem
and the (if we find it) solution to the next person who comes along.
</snip>
I'm not calling a php program from exec, I'm calling ecasound and
convert. For example, in the php code:
<snip>
Understood, but if the web server doesn't have permission to execute the app,
it won't.
</snip>
exec("convert $internalpath/$filename -resize {$thumbWidth}x{$thumbHeight}
$internalpath/$thumbname", $out, $err);
doesn't always work, but with variables substituted on the command line:
<snip>
Are you sure that the variables have value, and it is the value you want?
What is stored in $err when you try to execute this? Echo that out, and it
may tell you exactly what's going wrong.
</snip>
bash:~> convert futon.jpg -resize 240x180 futon_thumb.jpg
will always work.
The same is true, on a different server, of my exec that calls ecasound, an
mp3 processing utility. Both of these could conceivably use a lot of
resources, which is why I think php is killing them off some of the time.
<snip>
Try increasing the memory limit in your script with ini_set.
--
John C. Nichel
ÜberGeek
KegWorks.com
716.856.9675
john@xxxxxxxxxxxx
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