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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Woody: Hey, Mr. Peterson, what's up?    \
| Norm: The warranty on my liver.         |
|                                         |
| -- Cheers, Breaking In Is Hard to Do    |
|                                         |
| Sam: What can I do for you, Norm? Norm: |
| Open up those beer taps and, oh, take   |
| the day off, Sam.                       |
|                                         |
| -- Cheers, Veggie-Boyd                  |
|                                         |
| Woody: What's going on, Mr. Peterson?   |
| Norm: Another layer for the winter,     |
| Wood.                                   |
|                                         |
\ -- Cheers, It's a Wonderful Wife        /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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