changed some code in examples from <?php to &lt;?php in the event  that a local install tries to interpret the example as code
diff --git a/user_guide/libraries/form_validation.html b/user_guide/libraries/form_validation.html
index 684fe9b..b49117e 100644
--- a/user_guide/libraries/form_validation.html
+++ b/user_guide/libraries/form_validation.html
@@ -313,7 +313,7 @@
 
 <p>Your controller should now look like this:</p>
 
-<textarea class="textarea" style="width:100%" cols="50" rows="28"><?php
+<textarea class="textarea" style="width:100%" cols="50" rows="28">&lt;?php
 
 class Form extends Controller {
 	
@@ -515,7 +515,7 @@
 <p>Then add a new function called <dfn>username_check</dfn> to your controller.  Here's how your controller should now look:</p>
 
 
-<textarea class="textarea" style="width:100%" cols="50" rows="44"><?php
+<textarea class="textarea" style="width:100%" cols="50" rows="44">&lt;?php
 
 class Form extends Controller {