I have installed libreoffice headless on a freebsd-server with apache in order to convert documents programmatically (e.g. odt->pdf). It works from the command line! But my goal is to be able to do it from php. This demands that the web-user (www) can run libreoffice. But it cannot.
When running libreoffice as my own user, I get:
%libreoffice --headless -convert-to pdf Litteraturundervisningogit.doc
javaPathHelper: not found #This should not be a problem, says people on the net.
convert /usr/home/bundsgaard.net/www/jeppe/foredrag/Litteraturundervisningogit.doc ->
/usr/home/bundsgaard.net/www/jeppe/foredrag/Litteraturundervisningogit.pdf using writer_pdf_Export
%
If I try the same command as root, it does not work. The same is the problem with the www-user from php:
sp# libreoffice --headless -convert-to pdf Litteraturundervisningogit.doc
javaPathHelper: not found
sp#
The problem is that I do not get any information from libreoffice, thus I don't know why libreoffice does not want to run as other users than my own.
My question is: How do I give the www-user permission to run libreoffice via exec() in php?
I managed to fix this issue with a quick export HOME=/tmp before running the convert command, this gives libreoffice somewhere writable to work it's magic.
Not strictly an answer, but rather than using PHP's exec, you might consider using PUNO, a PHP5 module that provides access to the OpenOffice.org UNO Programming API.
Did you look at this blog post?
I was having the same problem and yes (thanks Wrikken) after prepending /usr/local/sbin to the PATH environment variable I was able to run libreoffice as www-data under apache.
I'll recomend put config path first you run exec() or shell_exec();
IE:
// Vars
putenv('PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin');
putenv('HOME=' . $outputdir);
$outputdir = chmod 777 And the same forlder from libreoffice command "--outdir"
About Universal Network Objects (UNO), there are some "plug-and-play" final-user tools, see Docvert and JODConverter (jODconverter and pyODconverter). All of then can be called as web-service or exec by PHP.
This works for me.
Make sure you have installed java RE, for example in ubuntu:
apt-get install default-jre
First, find the location of your libreoffice
$ which libreoffice
/usr/bin/libreoffice
Include the folder location in the PATH, and also set the HOME var by adding these lines:
putenv('PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin');
putenv('HOME=/tmp');
system("libreoffice .....
来源：https://stackoverflow.com/questions/9056776/running-libreoffice-from-php-exec