login session php mysqli

I want to create login and logout session. kim 588 login My table in mysql database is looking like this. pegipegi com login CREATE TABLE members ( id int (10) NOT NULL auto_increment, username varchar (20) NOT NULL, password varchar (20) NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=3 ; and mysql connection named as loginproc php