Here is the min file:
\documentclass{article}
\usepackage{tabularx}[1999/01/07] % v2.07
\usepackage{hyperref}% 2012/10/15 v6.83k
\listfiles
\begin{document}
\begin{minipage}[t]{.5\linewidth}
\begin{tabularx}{\linewidth}{c}
text\footnote{footnote test} \\
\end{tabularx}
\end{minipage}
\end{document}
With the above codes, the output pdf file doesn't present "footnote test" in table footnote area.

tabularx-environment LaTeX; footnote, hyperref, tabular... – Werner May 14 '13 at 01:54