| PHP | .NET |
| Database | For point of database connectivity PHP uses MySQL for the purpose of database connectivitybecasue its highly flexiblilty nature. Another important fact is that it will incurextra expenditure because MySQL can be accessed for free. | ASP.Net uses MS-SQL for connecting database but MS-SQL can not be availed free fromMicrosoft. |
| Cost | Linux can be used for running PHP programs and Linux is free operating system. Therefore,the cost of developing a website in PHP language is remarkably low | We need to install Internet Information Server (IIS)on a Windows server platformif you want to run ASP.Net program. As Windows server platform is not a free product,the cost of production is bounded to be increased. |
Run Time
| It has been observed that ASP.Net code runs slower than PHP code. | This is becauseASP.Net utilizes server space while running whereas inbuilt memory space is usedby PHP while running. |
Coding Simplicity
| PHP codes are very simple and a programmer does not haveto make a diligent effort because it is comparatively easier than other types ofprogramming languages. | ASP.Net codes are somewhat complicated and a web developer needs to work hard toget the hang of it |
Platform Connectivity Issue
| PHP has a unique advantagein this issue. Its codes can be linked with different types of platforms such asWindows, Linux and UNIX. | ASP codes are usually run on Windows platforms but if you install ASP-Apache inthe server than it can run on Linux platform as well. |
Cost of Tools
| PHP codes are available for free in various forums and blogs as it is a open sourcesoftware. Furthermore, some useful tools that can be used in PHP are also availablefor free. | There is no such free tools are available for ASP.Net. |
Language Support
| The codes that are used in PHP are very much similar to that of C++ language andits syntax resembles the syntax used in C and C++. Therefore, if you have a fair knowledge in C++ or C, you will not face any difficulty while coding PHP language. | The syntax of ASP is more or less similar to that of Visual basic syntaxand this is all but simple. |
Security
| Though PHP can offer enough measures for ensuring data security | ASP. Net is reputedfor creating sophisticated techniques to ensure the safety of confidential data.This is the reason why government organizations opt for ASP.Net. |