Add index.php to DirectoryIndex in Apache2.2 httpd.conf on Windows
If you want to give Apache2.2 the ability to serve up an index.php file by default, in addition to index.html, you must add”index.php” to the DirectoryIndex entry in the httpd.conf file for Apache2.2.
The entry needs to look something like this:
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
DirectoryIndex index.html index.php