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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ No prisoner's dilemma here. Over the    \
| long term, symbiosis is more useful     |
| than parasitism. More fun, too. Ask any |
| mitochondria.                           |
|                                         |
| -- Larry Wall in                        |
\ <199705102042.NAA00851@wall.org>        /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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