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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/  ___====-_ _-====___                    \
|                                         |
| _--~~~#####// ' ` \\#####~~~--_         |
|                                         |
| -~##########// ( ) \\##########~-_      |
|                                         |
| -############// |\^^/| \\############-  |
|                                         |
| _~############// (O||O)                 |
| \\############~_                        |
|                                         |
| ~#############(( \\// ))#############~  |
|                                         |
| -###############\\ (oo)                 |
| //###############-                      |
|                                         |
| -#################\\ / `' \             |
| //#################-                    |
|                                         |
| -###################\\/ ()              |
| \//###################-                 |
|                                         |
| _#/|##########/\######( (())            |
| )######/\##########|\#_                 |
|                                         |
| |/ |#/\#/\#/\/ \#/\##| \()/ |##/\#/     |
| \/\#/\#/\#| \|                          |
|                                         |
| ` |/ V V ` V )|| |()| ||( V ' V /\ \| ' |
|                                         |
| ` ` ` ` / | |()| | \ ' '<||> '          |
|                                         |
| ( | |()| | )\ /|/                       |
|                                         |
| __\ |__|()|__| /__\______/|/            |
|                                         |
\ (vvv(vvvv)(vvvv)vvv)______|/            /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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