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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _______________________________________
/ He who knows not and knows that he    \
| knows not is ignorant. Teach him. He  |
| who knows not and knows not that he   |
| knows not is a fool. Shun him. He who |
| knows and knows not that he knows is  |
\ asleep. Wake him.                     /
 ---------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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