Hi,

I need to know how to run a php file and what are pre requisites to run this?

I have installed Apache Tomcat and PHP5.x . I need to run a small php on this server?

What is php.ini, what modification do i need to to do in this php.ini, and where i can put this php.ini? that means what is the folder structure?

I have strong programming knowledge in Java.

Please help me out...

Ok majeed, at first install wamp or xammp. I am using wamp which is free available.
1. Let say you installed your wamp in c:\ drive.
2. their you will a folder c:\wamp\www.
3. just paste your all .php and .html files which you want to treat as server side files.
4. This www folder become you server side address from where you will access the data.
4. Now in start your wamp server. you will an icon appear on task bar.
5. Now left click on that icon and select localhost.
6.a. This localhost will directly linked with you www address. From here you can select your file which you want to open.
6.b. Another way is to write "http://localhost/file.*" in your explorer. This will also open your file.

For your convenint i will suggest you to download "php Designer 200*" version. It is php editor.

And abut php.ini. For initial php programs you don't need to set the pages.
Later you need it for cookies and other image file storing location. But for beginning it is enough.

for other problem you can consult me. I am also a beginner. But I will try my best to solve your problem. All the best.