Different output when compile from PHP and from console

manpreet Best Answer 2 years ago

I am creating cards with tasks in tex format. Card sample

\documentclass[14pt]{book}
\usepackage{color}
\usepackage[utf8x]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage[english,russian]{babel}
\usepackage{ucs}\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}

\pagestyle{empty}
\begin{document}
Карточка №1
\begin{equation*}\text{Решите уравнение}\space \log_{9}{(4x+5)}=5           \end{equation*} \\ 
\begin{equation*}\text{Решите уравнение}\space \log_{4}{(4x+(-1))}=4 \end{equation*} \\ 
\begin{equation*}Решите\space уравнение\space \log_{2}{(1x^2+(-2))} = \log_{2}{6x} \end{equation*} \\ 
\begin{equation*}\text{Решите уравнение}\space \log_{4}{x} = 5 \end{equation*} \\ 
\begin{equation*}\text{Решите уравнение}\space \log_{7}{x} = 2 \end{equation*} \\ 
\noindent\makebox[\linewidth]{\rule{\paperwidth}{0.4pt}}
\end{document}

When I compile this file via shell_exec in PHP, resulting PDF doesn't have any letters, just formulas. But, if I run /usr/bin/pdflatex -output-directory /var/www/files --interaction batchmode 2016-06-15.00-30-46576031369d029.tex in console, PDF will contain symbols.

What can cause this problem?

manpreet 2 years ago

As a temporary workaround, I finish with this

$output = system("echo 'pass' | sudo -u user /usr/bin/pdflatex -output-directory /var/www/files --interaction batchmode files/".$name.".tex");