WordPress on .NET with SQL Server is Possimpible using Phalanger 3.0

In a recent scenario I wanted to run WordPress as a subdirectory of a .NET application. I also wanted to avoid installing PHP and MySql on the Windows server. Impossible? Apparently not! (I’ll get to the word Possimpible a bit later).

I already have IIS and SQL Server setup, so I want to utilize those with WordPress. To do this I installed a pre-compiled version of WordPress, using Phalanger, as well as a simple WordPress plugin to avoid having to install MySql.  Here is what I did…


Download the Goods

First, you’ll need to grab a few things prior to starting.

The environment I worked on was IIS 7/7.5 with SQL Server 2008 Express and .NET 4.0 on Windows 2008. You should have a similar combination of software installed if you expect it to work properly after following this tutorial. I also used SQL Server Management Studio Express to make things a bit easier for creating the database. If you don’t have it, you can grab it here.

NOTE: This post is heavily based on Miloslav’s previous post for Installing WordPress on .NET 4.0, however I’m using SQL Server instead of MySql and a newer version of Phalanger.

Install Phalanger 3.0

Extract the contents of the download and run the Setup Wizard to install Phalanger by following the on-screen instructions. Should be simple enough!

NOTE: You can skip this step if you wish to do a standalone deployment or don’t have access to the server, as written in the Installation Free Phalanger article previously by Jakub. Be sure that you have the Microsoft Visual C++ 2010 SP1 x86 Redistributable installed or it will throw an error about php4ts.dll not being found!

Install WordPress

Extract WordPress to a directory of your choosing within IIS.

NOTE: I downloaded the IIS version of WordPress, although I’m not certain it matters.

In this tutorial I already have an ASP.NET 4.0 Web Application running in a directory (cfv2). I am going to install WordPress as a separate Web Application, but as a sub-directory that lives within this website. There are a couple ways to do this, but in this case I am installing it in a physical subfolder of the existing .NET web application. I created the directory at:


NOTE: You can use wwwroot of IIS or any other virtual directory.

Next, set write and modify permissions for IIS_IUSRS on this folder. This is necessary since WordPress creates wp-config.php file during the installation. Also, WordPress needs the write permission to allow auto update feature, downloading themes, plugins, etc.

To set the permissions, open Command Prompt with the Administrator permissions and run the following command:

icacls c:\inetpub\wwwroot\cfv2\wpblog /grant BUILTIN\IIS_IUSRS:(OI)(CI)(M)

NOTE: If you don’t want to allow this you can create the configuration file manually during the installation. WordPress recognizes that it doesn’t have permissions to create the file and gives you content for this file. Then you can create the file manually.

Setup the Web Application

I’ve created the physical subdirectory (wpblog), but now I need to set it up as a Web Application in IIS. There are a couple steps here that may differ for you depending on your setup.

Create a 32-Bit Application Pool

For the open source version of Phalanger to work properly you’ll need an Application Pool that is 32-Bit enabled. So here I will create a new Application Pool that will run in 32-Bit Mode. In IIS go to the Application Pools area under your server. Right click and do “Add New Application Pool…” I called mine WordPress. Select .NET 4.0 or above and click OK.


Next, check the list of Application Pools that should appear on the right. Select the newly created one and right click and select “Advanced Settings” option. Change “Enable 32-Bit Applications” from False to True.


Create a Web Application

In IIS right click and select the “Add Application”, then set the Physical Path to the wpblog directory. I’m going to call it “blog” so eventually it will look like http://mysite/blog/


Next select the previously created Application Pool (called WordPress as mentioned in the previous step)


Add a Web.config File

Configure ASP.NET using Web.config.  The web.config file will reside in the root of the wordpress directory (in this case wpblog). Here is an example web.config file that uses Phalanger 3.0 references.

View the sample web.config file.

Alternatively, view the sample web.config file for standalone installations including URL rewrites for pretty permalinks.

More information about configurations can be found here in the wiki.

Setup your SQL Server database

Create a new empty SQL Server database for the WordPress stuff to reside. Optionally, you can skip this if you have already created one or are planning on using an existing database.


Be sure to setup a user with high enough privileges to create the tables.


Setup the WP Database Abstraction Plugin

Now we’ll need to follow the DB Abstraction plugin instructions.

Upload wp-db-abstraction.php and the wp-db-abstraction directory to wp-content/mu-plugins. This should be parallel to your regular plugins directory. If the mu-plugins directory does not exist, you must create it.


Move the db.php file from inside the wp-db-abstraction directory to wp-content/db.php

Setup and install the plugin by going your wordpress url (eg. http://localhost/blog/) with the subdirectory /wp-content/mu-plugins/wp-db-abstraction/setup-config.php appended to generate your wp-config.php file.


Follow the on-screen instructions from the point on…

That is it. Now just follow the normal WordPress setup and you’re home!

NOTE: After installation, see Miloslav’s article for information about setting up permalinks by modifying your web.config file.

Optional: Pre-Compile WordPress with Phalanger

Phalanger can compile the source code to a .NET assembly for improved performance. This is suggested!

NOTE: It is not necessary to precompile the web page; single scripts will be compiled during first requests subsequently. However it is recommended to precompile the application to make sure the application is error free and to lower response time during first request.

To do this, create a build.bat file in the wordpress directory with something similar to the following content:

@echo off
"C:\Program Files (x86)\Phalanger 3.0\Bin\phpc" /target:web /root:. /recurse:. /out:Bin /static+ /debug-

This batch file runs the Phalanger compiler to perform the pre-compilation. Detailed documentation for each of phpc option can be found here.


Error during Build? Here is a quick fix!

It will likely give you an error when you attempt to build (although this may be fixed in the future), so you have to make a slight modification to the WP Abstraction Plugin. I encountered an error with the Data Abstraction plugin at line 562 of the pdo.php:


It seems to choke on the “break;” line in the pdo.php since it is not in a loop. Modify it to “return;”, save the file, and then it should compile OK.

After it compiles successfully, the Bin folder should have a WebPages.dll file inside.  If you are doing a standalone install, you’ll need to drop all the necessary Phalanger DLLs in the Bin as well.

Concluding Thoughts

This is a real-world walk-through from notes as I set it up for my own purposes. There are numerous variations you can take along the way to set it up in your own environment and this post should only be used as a guideline. Definitely spend time testing it out in a local or sandbox environment before putting it into production.

I would highly suggest using the pre-compiled version versus non-compiled as it seems to offer some speed benefits. I tried both — the non-compiled version seemed to intermittently take long periods to load pages and sometimes would even timeout (load a blank page).

For high-level production environments, Devsense offers a Managed Extensions Pack for a fee, which provides increased speed, security and the ability to run in 64-Bit mode.

I’m a big advocate of using open-source .NET stuff, and also giving back. If you use the open-source version of Phalanger, please be sure to contribute by donating to the project.

That’s all! See, I told you WordPress on .NET with SQL Server is possible. In fact, it’s Possimpible (finally see the reference here). Still a skeptic? Check it out live at http://couponfollow.com/blog/ and be amazed! Well it needs some UI theme updates… and some content… but hey, it is working.

About the Guest Author

Marc Mezzacca is a .NET Programmer, entrepreneur, and founder of NextGen Shopping, a company dedicated to creating innovative shopping mashups. Marc’s latest venture is a social-media based coupon code website called CouponFollow that utilizes the Twitter API.

16 thoughts on “WordPress on .NET with SQL Server is Possimpible using Phalanger 3.0

  1. Interesting, though I can think of a number of cases (admittedly these could be considered edge cases) where plugins or themes access the database without using the $wpdb object or any other libs provided by WordPress and instead connect to MySQL independently of WP.

    In particular I am thinking of the way some plugins (and themes) handle ajax requests – to avoid the cost of requiring wp-load.php some instead parse it to obtain MySQL connection details or have their own cached copy of the same credentials. They then form their own connection, which could be problematic here?

  2. I can’t run php web site in VS integrated dev web server.
    It says ‘unknown section phpNet’. Use of full IIS is not a good option.

    And the wiki completely misses info on howto convert/run simple php website or create Web.config.
    Local IIS examples are bad because not everyone has IIS installed.

    • This looks like a problem with installation. If Phalanger is installed properly you should have phpNet config section enabled in “C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\machine.config”

      in \configuration\configSections

      section name=”phpNet” type=”PHP.Core.ConfigurationSectionHandler, PhpNetCore, Version=, Culture=neutral, PublicKeyToken=0a8e8c4c76728c71″

      Abou samples… thank you for suggestion for wiki, I agree there should be an tutorial of this kind, for now there is this http://wiki.php-compiler.net/Code_samples#Web_Site But all the samples present in Phalanger installation can be run from VS integrated dev web server.

  3. Ok, thanks on that. Now site runs fine in dev environment.
    What is not working for me is the site publish button in Visual Studio. It copies site without php files and doesn’t builds assemblies either. Have to run precompile and copy site manually which is not fun.

    It can be a good idea to add “PHP Web Project” template to VS because projects give better settings comparing to sites. At least allows to setup pre-compilation on a build.

    Also would be great to have NuGet library package that imports/updates all required files for standalone mode into current project and tweaks config. Will make life much easier.

    Another cool thing can be a way to integrate php site into MVC3 Area somehow :)

    Anyway thanks – interesting toy to play with.

    • Hello,

      thank you for reporting publish issue, I’ve put it on task list for Phalanger Tools.

      PHP Web Project is already on task list, for now you can basicaly achive the same with PHP Class Library template project and change in properties output type to Standard.

      NuGet is another great idea more people had suggested, as well on todo list:)

      There can be more ways how to integrate php with MVC3. Basically with pure mode http://wiki.php-compiler.net/Pure_mode you can get .NET assembly same as with C# so it’s not very difficult to create MVC3 visual studio template for PHP, you would be just using PHP instead of C#:) Another integration kind can be just to use razor engine in PHP, I have a sample prepared which will be published soon.

      Thank you for all the good suggestion,

  4. i got an error like this
    “Your PHP installation appears to be missing the MySQL extension which is required by WordPress.”

    how can i solve this?
    Am i missing something or wat??

  5. Hmm… I believe I encountered that error at some point too. Can’t quite remember why though. Are you using the latest build of Phalanger?

    If so, it is likely something is wrong with it detecting the WP Database Abstraction Plugin. Please check and ensure you followed the “Setup the WP Database Abstraction Plugin” section above correctly.

    Also, at what point are you encountering this error?

    • i’m using Phalanger 3.0.
      I encountered that error when i’m trying to access below url
      sub directory/wp-content/mu-plugins/wp-db-abstraction/setup-config.php

  6. I got an error like below while accessing home page of wordpress.
    “Your PHP installation appears to be missing the MySQL extension which is required by WordPress.”
    It is running fine without running batch file on IIS using MS Sql.
    When i trying to make dll using phalager,i encountered error like above.
    so what is the problem?

    Thanks in advance.

  7. I wonder is it possible to run build file to pre-compile the application in webpages.dll and then remove all of or some of wp php source file file, and still able to run wordpress?

    My objective behind this is to host only pre-compiled dll files and not php code on server.

    I need your help and guidance on how to do it..