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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ It happened that a fire broke out       \
| backstage in a theater. The clown came  |
| out to inform the public. They thought  |
| it was just a jest and applauded. He    |
| repeated his warning, they shouted even |
| louder. So I think the world will come  |
| to an end amid general applause from    |
| all the wits, who believe that it is a  |
\ joke.                                   /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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