When it comes to web programming the front runners can be easily said as PHP and ASP.NET..


ASP.NET:
If you program in ASP.NET you'll typically get too responses from the other side. Either you're rich (or your company is) or you're a Microsoft lover. While the name comes from Microsoft's old ASP technology, they made a huge leap with the .NET Framework, and the CLR allows you to use other languages for back end processing: typically Visual Basic.NET or C#.

ASP.NET's strength lies in object oriented features, and it's flexibility. Because of the CLR you can have C# programmers and VB.NET programmers working on the same project, or switch languages half way through and not have to rewrite all of your old classes. The .NET class library is organized into inheritable classes based around particular tasks, such as working with XML or image manipulation, so a lot of the more common tasks have been already handled for you.

Visual Studio .NET is a massive development IDE that will shave tons of time of your coding. It has built in debugging along with IntelliSense, which allows for auto-completion of methods and variables so you don't have to memorize everything.

On the down side, ASP.NET is expensive. One it uses tons more resources on the web server so you'll require either better server or more servers in the farm.  It's extremely rare for an ASP.NET app not to be running on IIS. They are a lot of downsides with IIS as it is bug-prone!!

PHP
PHP works in combination of HTML to display dynamic elements on the page. PHP only parses code within its delimiters, such as . Anything outside its delimiters is sent directly to the output and not parsed by PHP.

PHP strength lies mostly in LAMP. The LAMP architecture has become popular in the Web industry as a way of deploying inexpensive, reliable, scalable, secure web applications. PHP is commonly used as the P in this bundle alongside Linux, Apache and MySQL. PHP can be used with a large number of relational database management systems, runs on all of the most popular web servers and is available for many different operating systems. This flexibility means that PHP has a wide installation base across the Internet; over 18 million Internet domains are currently hosted on servers with PHP installed.

With PHP 5 finally came exception handling and true OOP, but it still lack namespacing to prevent class naming collisions. PHP's type checking is very loose, potentially causing problems. Another drawback is that variables in PHP are not really considered to have a type


With CMS like Drupal which are now the heart of website building, PHP has become extremely useful as the entire drupal package is coded in it...... Corporations have to wake up and choose for what they want instead of going with the blunt saying:


"Its worth only if u buy!!!"