1. Getting the PHP5 package.

A visit to the www.php.net downloads page reveals several choices in the "Windows Binaries" section. Download the zip package (details below):

• PHP 5.0.4 zip package [7,488Kb]

(Please note that later versions may be available as you read this)

The ZIP package is the preferred option (when compared with the Installer) simply because it includes greater functionality and extensions. However, this should be obvious from the much greater download size.

2. Extracting the files:

Figure 1 - Extracting the files

Unzip the PHP archive to C:\PHP5 then copy "php5ts.dll" (highlighted in Figure 1 above) into C:\Windows\System32\

Next, copy "php.ini-recommended" to C:\Windows\ and rename it "php.ini" (in C:\Windows\).

3. Configuring Internet Information Services (IIS) Manager:

Figure 2 - Accessing the "Web Sites Properties" dialogue box in IIS

If you are using the new style Start menu, you can reach the Internet Information Services console by clicking “Start”, “Administrative Tools” and selecting “Internet Information Services (IIS) Manager” from the list.

If you are using the “Classic” style Start Menu, you can reach the console by clicking “Start”, “Programs”, “Administrative Tools” and select “Internet Information Services (IIS) Manager” from the list.

The first thing we need to do is tell IIS how it should process PHP files. To do this, first right-click on "Web Sites" in the left-hand menu and select "Properties" from the list that appears (as shown in Figure 2 above).

Figure 3 - Application Configuration

Once open, select the "Home Directory" tab and click on "Configuration". A similar window to figure 3 (above) will appear. Click on "Add".

Figure 4 - PHP Application Mappings

Complete the box shown in Figure 4 (above) as shown then press "OK". If you see a message appear with a list of "Child Nodes" you should check them carefully before selecting which should be PHP-enabled. Be particularly careful if you are running Microsoft Exchange Outlook Web Access (OWA) as overriding the OWA Virtual Directory settings will stop it from working!

IIS now knows how to process PHP files. However, it's "Web Service Extensions" rules still restrict it from doing this.

Figure 5 - Web Service Extensions

We now need to configure "Web Service Extensions" so right-click on "Web Service Extensions" in the menu on the left. Then select "Add a new Web service extension..." from the list (as shown in Figure 5 above)

Figure 6 - Creating a PHP web service extension

Complete the dialogue box as shown in Figure 6 above. Make sure you check the "Set extension status to Allowed" checkbox. The "Extension name:" is only a reference and hence can be anything - PHP makes it easy to identify in future though.

Figure 7 - The completed Web Service Extensions window

The completed "Web Service Extensions" window should now look like figure 7 above.IIS now knows to process PHP files and our "Web Service Extensions" have made it possible for PHP scripts to run freely.

4. Allowing index.php files to run as a directory default:

Figure 8 - Configuring your default PHP content page

Returning to "Web Sites Properties" dialogue shown in Figure 2 we need to select the "Documents" tab and click on "Add".

To ensure that index.php documents open as a default they should be added as a "Content Page" as shown in Figure 8. You can, of course, change the importance of PHP over ASP and HTML documents to suit your site based on which document type should take preference.

TESTING...

Figure 9 - Results.

Create a new text file and rename it "index.php". This file should contain one line that reads:

<? phpinfo(); ?>

Simply copy this file to your web server and open it via your favourite web browser. You should be presented with a page similar to Fig. 9 above.