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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Roland was a warrior, from the land of  \
| the midnight sun, With a Thompson gun   |
| for hire, fighting to be done. The deal |
| was made in Denmark, on a dark and      |
| stormy day, So he set out for Biafra,   |
| to join the bloody fray. Through        |
| sixty-six and seven, they fought the    |
| Congo war, With their fingers on their  |
| triggers, knee deep in gore. Days and   |
| nights they battled, the Bantu to their |
| knees, They killed to earn their        |
| living, and to help out the Congolese.  |
|                                         |
| Roland the Thompson gunner... His       |
| comrades fought beside him, Van Owen    |
| and the rest, But of all the Thompson   |
| gunners, Roland was the best. So the    |
| C.I.A decided, they wanted Roland dead, |
| That son-of-a-bitch Van Owen, blew off  |
| Roland's head.                          |
|                                         |
| Roland the headless Thompson gunner...  |
| Roland searched the continent, for the  |
| man who'd done him in. He found him in  |
| Mombasa, in a bar room drinking gin,    |
| Roland aimed his Thompson gun, he       |
| didn't say a word, But he blew Van      |
| Owen's body from there to Johannesburg. |
| The eternal Thompson gunner, still      |
| wandering through the night, Now it's   |
| ten years later, but he stills keeps up |
| the fight. In Ireland, in Lebanon, in   |
| Palestine, in Berkeley, Patty Hearst... |
| heard the burst... of Roland's Thompson |
| gun, and bought it.                     |
|                                         |
| -- Warren Zevon, "Roland the Headless   |
\ Thompson Gunner"                        /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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