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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ This planet has -- or rather had -- a   \
| problem, which was this: most of the    |
| people living on it were unhappy for    |
| pretty much of the time. Many solutions |
| were suggested for this problem, but    |
| most of these were largely concerned    |
| with the movements of small green       |
| pieces of paper, which is odd because   |
| on the whole it wasn't the small green  |
| pieces of paper that were unhappy.      |
|                                         |
\ -- Douglas Adams                        /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

$output = shell_exec("/usr/games/fortune | /usr/games/cowsay");
echo $output;