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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ______________________________________
/ Copying machine, n.:                 \
|                                      |
| A device that shreds paper, flashes  |
| mysteriously coded messages,         |
|                                      |
| and makes duplicates for everyone in |
| the office who isn't                 |
|                                      |
\ interested in reading them.          /
 --------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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