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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _______________________________________
/ The Seventh Commandments for          \
| Technicians:                          |
|                                       |
| Work thou not on energized equipment, |
| for if thou dost, thy fellow          |
|                                       |
| workers will surely buy beers for thy |
| widow and console her in other        |
|                                       |
\ ways.                                 /
 ---------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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