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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _______________________________________
/ i dont even know if it makes sense at \
| all :) This is an experimental patch  |
| for an experimental kernel :))        |
|                                       |
\ -- Ingo Molnar on linux-kernel        /
 ---------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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