You can use the following in a .htaccess file to change the default document on your PHP based sites:
DirectoryIndex filename.htmlThis would cause filename.html to be treated as your default page, or default directory page. You...
Below is our default document list for sites that have Windows/IIS set as their default technology:
iisstart.htm
index.aspx
index.asp
index.html
index.htm
default.aspx
default.asp
default.html
default.htm