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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Coming to Stores Near You:              \
|                                         |
| 101 Grammatically Correct Popular Tunes |
| Featuring:                              |
|                                         |
| (You Aren't Anything but a) Hound Dog   |
|                                         |
| It Doesn't Mean a Thing If It Hasn't    |
| Got That Swing                          |
|                                         |
| I'm Not Misbehaving                     |
|                                         |
\ And A Whole Lot More...                 /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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