Online Passport Management System using PHP

My Friend asked me to develop an Online Passport Management System using PHP for his Mini Project. And I would like to share with you guys too...

Used XAMPP for LINUX.
Database restore can be done using PHPMyAdmin.

Copy all the files to your web server's directory.
Database name - passport (1).sql

This online passport management in PHP allows you to request for new Passport, renew existing passport or lost passport.

When you submit a request, it will be reviewed by the admin and if he so wishes, he can accept or reject your request for Passport.

The Administrators List can be changed in the database.
The Administrator Dashboard can be accessed using http://webserver/relative_path/admindir/

Download the project here :
http://www.mirrorcreator.com/files/10NOLDGN/online_pp_mgmt.zip_links

Recursive Functions

Recursive functions are the functions those call themselves. This recursion occurs until a specified condition is met and the function finally returns a value instead of going for recursion.

Also the number of recursion is limited to the stack size.

A recursion is always aimed to start from one value and end at another value.
A perfect example for recursion is calculating the factorial. Lets consider calculating the factorial of 5.
The Recursive function for the factorial can be defined as :

int factorial(int num)
{         
         if(num>0)
         {
                  return num*factorial(num-1);
         }
         else
         {
                  return 1;
         }
}

The recursion takes place as follows :
factorial(5) returns 5*factorial(4)
factorial(4) returns 4*factorial(3)
factorial(3) returns 3*factorial(2)
factorial(2) returns 2*factorial(1)
factorial(1) returns 1*factorial(0)
factorial(0) returns 1

Thus
factorial(1) becomes 1*1 = 1       since factorial(0) = 1
factorial(2) becomes 2*1 = 2       since factorial(1) = 1
factorial(3) becomes 3*2 = 6       since factorial(2) = 2
factorial(4) becomes 4*6 = 24      since factorial(3) = 6
factorial(5) becomes 5*24 = 120    since factorial(4) = 24

To put this in much more layman term,
factorial(5) = 5 * factorial(4)
             = 5 * 4 * factorial(3)
             = 5 * 4 * 3 * factorial(2)
             = 5 * 4 * 3 * 2 * factorial(1)
             = 5 * 4 * 3 * 2 * 1 * factorial(0)
             = 5 * 4 * 3 * 2 * 1 * 1
             = 120

Also the recursion plays an important role in several other algorithms too such as Binary Search, Quick Sort, etc.. But before you go to the recursion, try to use iteration and from iteration call the function. Also try to analyse and use the alternatives while going to recursion.

Scientific Calculator JAVA

Scientific Calculator would be the application that most of us, as a beginner of any language would want to develop. As a JAVA beginner, i wanted to , as well. So here it is , Scientific Calculator developed in JAVA for you guys.  Download the Scientific Calculator ( SciCalc.zip ) and extract the contents. There will be a folder named 'Scientific Calculator'

Open it and within that you will find these directories :
src - Contains the source code for 'Scientific Calculator'
dist - Contains the generated jar file 'Scientific Calculator .jar'

Here is the screenshot of the Scientific Calculator i have developed :

You can download the zip package from here :
http://www.4shared.com/zip/RZocZc7y/SciCalc.html
http://www.mirrorcreator.com/files/0DDAKNGL/Scientific_Calculator.zip_links