how to record some email have read

[xbl01234]

Hi:
i am trying to write a mail box. my question is how i can record some emails have opened. Could you give me some idea, please.

for example, i got some emails as following:

<a href="email/1">hi<a>
<a href="email/2">hello</a>
.....

[Habtom]

I am not sure if I completely understood you, but if you want to mark a row as read, you can update is_read field whenever you run the select statement for the same row.

[xbl01234]

Thanks for your advice.