I have a problem with session file;
My question is: In my session file i read something similar to:

"YEAR|s:4:"2003";NAME|N;SURNAME|R:2;ADDRESS|R:2; "

In that way my last two variables always get the value of second variable
cause of that " R:2 " it wrights without i could understand what it means.
Is there anyone who can help me about that " R:2 " and how is generated?
Thank you!