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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ________________________________________
/ Rincewind formed a mental picture of   \
| some strange entity living in a castle |
| made of teeth. It was the kind of      |
| mental picture you tried to forget.    |
| Unsuccessfully.                        |
|                                        |
| -- Terry Pratchett, "The Light         |
\ Fantastic"                             /
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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