Question Warning: preg_match() [function.preg-match]: Unknown modifier /libraries/phputf8/str_ireplace.php

I got this error after adding new avatar directory and some avatars in it. But it showed the directory name in drop down menu, just when I try to select it from the drop down menu, it only got me back to my profile page instead of showing the new avatar directory I chose.

Please help me to solve it. Thank you

I just saw this 5 minutes ago by myself -- it looks like Joomla 1.7 bug. I will check what's happening..

Fixed the notice, but the behavior will stay the same in the next release (if you change tab back to avatars, you will see your selected gallery).

Thank you. So there's nothing I can do now?

Ah! I saw my selected gallery now after taking away from avatar editing page and then tab back. I also found something to fix with the error notice I would like to share here

joomlacode.org/gf/project/joomla/tracker...racker_item_id=25780

Thanks from the link. It looks like it's not going to be fixed in Joomla, so I've made workaround for it. The issue itself shouldn't affect on anything.

Turning display_errors off will hide the issue, so that is what you should do.

In production server you should always keep PHP display_errors off as every minor bug reveals too much information for the hackers (after that you can see the issues from the log files). In test servers it should be turned on because of it helps to fix some bugs. Also turn off debug mode in production servers unless you're looking at the issue right in that moment.