How many script do you have? I mean really what is so hard with adding php to <? anyway, if you have a modern editor all you need to do is search and replace all <? with <?php. If you were to ever change servers you code would still work, and if you sent you code to someone else it will work (provided that it works in the first place). It just makes sense to use it for that fact alone. It is kind of like wanting to use javascript to perform a function and then wondering why it doesn't work for all your users when it can be turned off by users and a well written php script that does the same thing could be used, why take the chance with it?