Which is best PHP or ASP .NET?

Best PHP Free Open Source site http://www.phpkode.com/ would provide you the easiest means to download whatever php codes you need.

php is having many advantages over asp in terms of cost, Speed, Security and flexibility.
More Refer  http://knol.google.com/k/convert-asp-code-into-php-code#

http://qualitypoint.blogspot.com/2009/06/advantages-of-php-over-asp-and.html

Undoubtedly PHP and that too by many many ways. Simply ASP.NET is nowhere in the race with PHP. Here are the reasons

1. A programming language is not scaled with how easily you can built an application. But its robustness, flexibility, speed etc measure the performance. PHP in all segments leave ASP.NET many miles behind.

2. PHP is a fast growing language and growing much faster than ASP.NET.

3. It has innumerable built in functionalities and has support of many external libraries. Combine the flexibility, and PHP is the winner.

4. Support of Apache, the best web server and MySQL, undoubtedly one of the leaders of RDBMS makes it a perfect combination.

5. Platform in-dependency. ASP.NET can run only in WINDOWS-IIS

6. Web server in-dependency.

7. Highest fault tolerance with safe mode support.

and there are plenty of reasons.

If you ask me its PHP for me, as PHP is cheap, secure, fast, Since PHP is open source, there is a number of applications that are available for free based on it, most of these applications are commonly used and are very powerful also, there is a greater number of community forums and blogs where you are able to find information regarding PHP since it is open source. , One thing which annoys many ASP.NET developers is the fact that Microsoft is forever releasing updates to the system, and in its course, changing things along the way meaning that in some cases, developers have to keep on learning the changes as well as the new components and functions which are being added.