title: How to Manage Guest Users with Php and SQL
body: <p>I am using PHP , MySQL for Handling My site. I have a user table called <strong>user_table</strong> containing <strong>user_id PRIMARY</strong> and Now user can chat with other user. For that I am using a table called <strong>message_table</strong>. this table contains essential fields like msg_id , sender_id , reciver_id , replay_id etc. this works very fine.But I need to handle also guest users[Not registered] with this chat. how can I handle them. I inserted the guset_id as the mixture of <strong>entering time</strong> and <strong>his name</strong> to a table called guest_table. Now I can use this guest_table like user_table. Is that a good idea ?</p>