When I run my index.php with the following doctype:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
It works in both Chrome and Firefox everything is displayed. The problem is in IE9 it just shows the html sourcecode.
Now I know it't not the code because when the file extension was index.html it displayed fine in IE9.
I've also tried
Which is ment to work with all the new browsers. Probably a stupid question but anyone shed some light?