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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ______________________________________
/ Houston, Tranquillity Base here. The \
| Eagle has landed.                    |
|                                      |
\ -- Neil Armstrong                    /
 --------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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