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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Welcome back, my friends, to the show   \
| that never ends! We're so glad you      |
| could attend, come inside, come inside! |
| There behind the glass there's a real   |
| blade of grass, Be careful as you pass, |
| move along, move along. Come inside,    |
| the show's about to start, Guaranteed   |
| to blow your head apart. Rest assured,  |
| you'll get your money's worth, Greatest |
| show, in heaven, hell or earth! You     |
| gotta see the show! It's a dynamo! You  |
| gotta see the show! It's rock 'n' roll! |
|                                         |
| -- ELP, "Karn Evil 9" (1st Impression,  |
\ Part 2)                                 /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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