Hi Rashmi,
for question
a)you just set the cookie with some name, in cookie function you can use expire time like time()+(60*60*24*365) for one year,
b)in this after login you can set the cookie and store the time of user login, if the user visiting second time show him last login time and update the cookie with current visiting time or use two cookies for last login and curent login time,
c)in this you create a cookie and for every page refreshed you can increment the cookie value by 1,
d)in this create a cookie for user name after login and show different page for different user, finally if the user click on logout delete the cookie by taking -ve time as expire time.
Nov 30, 2010
