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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ The primary purpose of the DATA         \
| statement is to give names to           |
| constants; instead of referring to pi   |
| as 3.141592653589793 at every           |
| appearance, the variable PI can be      |
| given that value with a DATA statement  |
| and used instead of the longer form of  |
| the constant. This also simplifies      |
| modifying the program, should the value |
| of pi change.                           |
|                                         |
\ -- FORTRAN manual for Xerox Computers   /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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