I’ve shared with our reader PHPAnywhere which lets you code and test PHP Code online using their Online IDE, but Incase you would like to program in a different programming language like .NET, PHP and Ajax then you can check out CodeRun which is an Online Development Platform or IDE where you can View, modify and run code, Debug client / server code, Publish and share code links.

Instead of downloading the code and running it on your desktop, you can open it with your browser using CodeRun provides an easy to use interface of an IDE and check the code right in your browser.

Here are some more things that you can do.

• View, modify and run code without having to download it to your desktop
• Search the fastest growing collection of runnable code examples from within the IDE
• Create new projects, or upload existing code online
• Edit code with syntax-coloring and code completion
• Compile managed code applications
• Debug client / server code with your browser
• Deploy applications to the cloud with a single click
• Manage your deployed websites and databases in the cloud
• Track code versioning with built-in SVN support
• Publish your own code links and allow others to branch from your code

You can create C#, PHP, JavaScript, HTML, CSS, ASP.NET applications, WCF services, WPF Applications, PHP projects, Facebook applications, iPhone browser applications and supports Amazon SimpleDB and SQL Server 2005 Databases.

With Code Auto Completion which can be triggered using CTRL+SPACE for the code completion popup make it easy to use even for novice programmers.

There are also various channels for programming languages with sample code and example which can also be run directly and the source code can also be seen.

CodeRun Online IDE is currently supports Internet Explorer 7 and Firefox.

This is how you can test the examples available in the channels

1. Search for example in the Channels or through Search Box
   
2. Run/Execute the code or View the Source Code using the CodeRun Online IDE.
   
3. View the output in your browser.