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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ______________________________________
/ Westheimer's Discovery:              \
|                                      |
| A couple of months in the laboratory |
| can frequently save a                |
|                                      |
\ couple of hours in the library.      /
 --------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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