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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/  joeyh: I was down since      \
| midmorning yesterday and pacbell said   |
|                                         |
| this morning that AT&T was to blame and |
| almost all of the state                 |
|                                         |
| was down  dunno why people insist  |
| the internet can survive a nuclear      |
| holocaust                               |
|                                         |
\ when it can't survive a backhoe         /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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