tbl_user
--------------------------------
id - int UNIQUE PRIMARY AUTO INCREMENT
username - varchar
password - varchar
status - int
since - DATE

id: Entry ID
username: User ID
password: User Password as HASH
status: Account Status (0 - not confirmed | 1 - confirmed | 2 - banned)
since: Date of registration



tbl_friendship
--------------------------------
id - int UNIQUE PRIMARY AUTO INCREMENT
user_a - varchar
user_b - varchar
status - int
since - DATE

id: Entry ID
user_a: User ID
user_b: User ID
status: Friend Status (0 - pending | 1 - approved)
since: Date of approval (if pending creation Date)