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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/  uh oh, what have I started  \
| :)  rofl... distro nick wars. * |
| Slackware just waits for /nick Gnome,   |
| /nick KDE, and then world war 4         |
|                                         |
| to break out  :oP       |
|   :)  no'one   |
\ would dare /nick RedHat  mew.    /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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