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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Pereant, inquit, qui ante nos nostra    \
| dixerunt.                               |
|                                         |
| [Confound those who have said our       |
| remarks before us.]                     |
|                                         |
| or                                      |
|                                         |
| [May they perish who have expressed our |
| bright ideas before us.]                |
|                                         |
\ -- Aelius Donatus                       /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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