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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ________________________________________
/ .. I used to get in more fights with   \
| SCO than I did my girlfriend, but now, |
| thanks to Linux, she has more than     |
| happily accepted her place back at     |
| number one antagonist in my life..     |
|                                        |
\ -- Jason Stiefel, krypto@s30.nmex.com  /
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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