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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ No proper program contains an           \
| indication which as an operator-applied |
| occurrence identifies an                |
| operator-defining occurrence which as   |
| an indication-applied occurrence        |
| identifies an indication-defining       |
| occurrence different from the one       |
| identified by the given indication as   |
| an indication-applied occurrence.       |
|                                         |
\ -- ALGOL 68 Report                      /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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