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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ The Gurus of Unix Meeting of Minds      \
| (GUMM) takes place Wednesday, April 1,  |
| 2076 (check THAT in your perpetual      |
| calendar program), 14 feet above the    |
| ground directly in front of the         |
| Milpitas Gumps. Members will grep each  |
| other by the hand (after intro), yacc a |
| lot, smoke filtered chroots in pipes,   |
| chown with forks, use the wc (unless    |
| uuclean), fseek nice zombie processes,  |
| strip, and sleep, but not, we hope, od. |
| Three days will be devoted to           |
| discussion of the ramifications of      |
| whodo. Two seconds have been allotted   |
| for a complete rundown of all the user- |
| friendly features of Unix. Seminars     |
| include "Everything You Know is Wrong", |
| led by Tom Kempson, "Batman or          |
| Cat:man?" led by Richie Dennis "cc C?   |
| Si! Si!" led by Kerwin Bernighan, and   |
| "Document Unix, Are You Kidding?" led   |
| by Jan Yeats. No Reader Service No. is  |
| necessary because all GUGUs (Gurus of   |
| Unix Group of Users) already know       |
| everything we could tell them.          |
|                                         |
| -- "Get GUMMed," Dr. Dobb's Journal,    |
\ June '84                                /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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