[PHP] IMAP issues

[Tim Steele]

I have just recently written a complete webmail software using PHP, and
need to implement features that determin whether the email has been read
or not.
 
The function imap_setflag_full can set the flag, but i have no way of
seeing which e-mails have what flags. 
 
imap_search allows you to search the email headers for strings, but i
have no way of knowing which emails had what flags.
 
Basically i need to:   when loading client, check to see if an
e-mail has been looked at
if no, set it to unread
if yes, leave it
when you read a message, set
it to read.
 
If anyone can help me on this, i would most appreciate it. It has been
killing me all day:(
 
Thanks:)
 

[PHP] Regex nightmare:(

[Tim Steele]

i need to uses reg ex to change a href=url to a href=url
target=_blank
 
the  brackets have to be represented using lt; and gt;
 
I have tried so many ways, but none work. here is an example of my
faliure.
 
$body =
preg_replace(/(href=\/?)(\w+)(gt;\/?)/e,'\\1'.'\\2'./'target=_blank/
'.'\\3', $body);
 
Thanks