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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Grig (the navigator):                   \
|                                         |
| ... so you see, it's just the two of us |
| against the entire space                |
|                                         |
| armada. Alex (the gunner):              |
|                                         |
| What?!? Grig: I've always wanted to     |
| fight a desperate battle against        |
|                                         |
| overwhelming odds. Alex: It'll be a     |
| slaughter! Grig: That's the spirit!     |
|                                         |
\ -- The Last Starfighter                 /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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