First we should create a table called users. This is the table that we will check the form fields against. Use the followig code to create this table. phpMyAdmin is preferred.
CREATE TABLE users (
username varchar(20) NOT NULL default '',
password varchar(20) NOT NULL default ''
);

After you have created your table populate it at least with one entry, for the sake of example we will use admin for username and admin for password. You are free to populate with your own data.

Now Open your dreamweaver and create a new page called login.php Here is the page and here is the code for creating that form with the two fields.

After you have created your login page make a connection to your database. (Go to Connecting to Database Tutorial if you don't know how to make a connection) If you have made a successful connection you should see your Table details in the Application window similar to the screenshot below.

While you are still in login.php page Choose Applications > Log In User.

Next you will be displayed with a pop up window where you have to make selections. First part of the window shows details of your form, second part your database and third part is a redirection process and finally restriction option based on your database table structure. This window is quite self explanatory just choose the right option from drop down menu. If you have a successful connection to your database your connection will be displayed in the Validate using connection section. If you don't see your connection in the drop down menu then you have to check your connection again (Step 2).

For Restrict access based on choose Username and password and not Username, password and access level. This is because our table has only username and password fields. After you are done choose OK.

Check Application > Server Behaviors Panel and you should see your script name there now. You can double click on it and edit anytime again, in case if you want to redirect to different page...etc

You are done! That was pretty easy huh? ;) Go ahead and test your login.php and see if it will do what it supposed to do. Remember it will check against users table in your database so make sure you enter correct data, in our case it was admin admin for username and password respectively.

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