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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Ducharme's Precept:                     \
|                                         |
| Opportunity always knocks at the least  |
| opportune moment.                       |
|                                         |
| Ducharme's Axiom:                       |
|                                         |
| If you view your problem closely enough |
| you will recognize                      |
|                                         |
\ yourself as part of the problem.        /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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