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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ The geographical center of Boston is in \
| Roxbury. Due north of the center we     |
| find the South End. This is not to be   |
| confused with South Boston which lies   |
| directly east from the South End. North |
| of the South End is East Boston and     |
| southwest of East Boston is the North   |
\ End.                                    /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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