如果 (www-data) 无法访问所需的包，我如何让 PHP 编译 LaTeX 文档?
我有一个 PHP 脚本，它使用以下代码编译 LaTeX 文档:
I have a PHP script that compiles LaTeX documents with the use of:
exec('cd /path/to/doc && /usr/bin/latexmk -pdf filename.tex');
这适用于我的一些 LaTeX 文档，但我的最新文档无法编译，查看日志显示:
This is working for some of my LaTeX documents but my latest document doesn't compile and a look at the log reveals:
!pdfTeX error: pdflatex (file ecrm1000): Font ecrm1000 at 600 not found
==> Fatal error occurred, no output PDF file produced!
我发现是 LaTeX 无法看到所需的字体包的结果.当我在我的用户名下运行相同的编译命令时，文档会按应有的方式编译.所以我的问题是，我怎样才能让 PHP(作为 www-data 执行)来访问必要的 LaTeX 包?
Which I have found is the result of LaTeX not being able to see the required font packages. When I run the same compile command under my username the document compiles as it should. So my question is, how can I get PHP (executing as www-data) to get access to the necessary LaTeX packages?
我已尝试使用以下方式在 www-data 帐户下安装所需的软件包:
I have tried installing the required package under the www-data account using:
sudo -u www-data sudo apt-get install texlive-fonts-recommended
但它要求输入 www-data 的密码，我不相信这是我设置的，也不是我扔给它的任何东西.
but it askes for www-data's password, which I don't believe was set by me and isn't anything I've thrown at it.
如果有帮助，我正在运行 Ubuntu 12.04.
I'm running Ubuntu 12.04 if it's any help.
推荐答案
sudo mktexpk --destdir/usr/share/texmf-texlive/fonts/pk/ljfour/jknappen/ec/--mfmode/--bdpi 600 --mag 1+0/600 --dpi 600 ecrm1000
... 使所有用户都可以使用该字体(与 missingfont.log 中的相同，但带有 --destdir 参数).
... makes the font available for all users (same as in missingfont.log but with --destdir argument).
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