Bug #10536 Updated: imap_expunge() can't really expunge mail

ID: 10536 Updated by: chagenbu Reported By: cwyeh@ccca.nctu.edu.tw Old-Status: Open Status: Bogus Bug Type: IMAP related PHP Version: 4.0.4pl1 Assigned To: Comments: Your second example is correct, and is also a heck of a lot more efficient. The first example doesn't work because every time you call imap_expunge(), the pop3 server actually deletes the messages, and the message numbers change. So if you have messages 1, 2, 3, 4, you delete 1, and you call imap_expunge, you don't have 2, 3, 4, you have 1, 2, 3. Your code then tries to delete number 2, leaving you with 1, 2 ... you see where this is going. Previous Comments: --------------------------------------------------------------------------- [2001-04-28 10:25:50] cwyeh@ccca.nctu.edu.tw As I wrote the following code I found the strong situation in imap_expunge(). It will expunge mails with odd number only but not every mail as I expected. $mbox = imap_open("{localhost/pop3:110INBOX", "test", "test"); $num_msg = imap_num_msg($mbox); echo "start at $num_msg...<br>"; for ( $i=1; $i<=$num_msg; $i++ ) { imap_delete($mbox, $i); imap_expunge($mbox); echo "doing $i....<br>"; } imap_expunge($mbox); $num_msg = imap_num_msg($mbox); echo "now is $num_msg<br>"; imap_close($mbox); I have the following output: start at 10... doing 1.... doing 2.... doing 3.... doing 4.... doing 5.... doing 6.... doing 7.... doing 8.... doing 9.... doing 10.... now is 5 If I modify the code as following the problem solved: for ( $i=1; $i<=$num_msg; $i++ ) { imap_delete($mbox, $i); echo "doing $i....<br>"; } imap_expunge($mbox); The result is coreect and all mail has been deleted. This bug occurs if a web mail system with a pop server try to delete lots of spam at a time. --------------------------------------------------------------------------- ATTENTION! Do NOT reply to this email! To reply, use the web interface found at http://bugs.php.net/?id=10536&edit=2