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Enjoy a randomly generated fortune:

$ fortune | cowsay

 ________________________________________
/ A hypothetical paradox:                \
|                                        |
| What would happen in a battle between  |
| an Enterprise security team,           |
|                                        |
| who always get killed soon after       |
| appearing, and a squad of Imperial     |
|                                        |
| Stormtroopers, who can't hit the broad |
| side of a planet?                      |
|                                        |
\ -- Tom Galloway                        /
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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