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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ This is not the age of pamphleteers. It \
| is the age of the engineers. The        |
| spark-gap is mightier than the pen.     |
| Democracy will not be salvaged by men   |
| who talk fluently, debate forcefully    |
| and quote aptly.                        |
|                                         |
| -- Lancelot Hogben, Science for the     |
\ Citizen, 1938                           /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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