To create the administrative page, you'll start by creating a page containing just a title, and build around it the protection mechanism to allow access only by authorized users.
The first thing you have to do is to create the admin page.
If you see the Welcome screen shown in Figure 1, choose PHP from the Create New column.

Figure 1. Creating a new PHP page from the Dreamweaver Welcome screen
If you don't see the Welcome screen, choose File > New and in the dialog box that appears choose PHP as the Page Type, leave <none> as the Layout, and click Create (see Figure 2).

Figure 2. Creating a new PHP page with the New Document dialog box
A new page, labeled Untitled-1, is created and opened.
Next, follow these steps:
To save the page choose File > Save. For the name, type admin. Select PHP Files for the Save As Type option.
Note: If you were working in a ColdFusion or ASP development environment, you would create a new ColdFusion or ASP VBScript file. These files would be saved as ColdFusion Templates and Active Server Pages, respectively.