wpsnoop Function is_user_online() conflicts found in 3 plugins

A php function called is_user_online() is used in 3 wordpress plugins/themes and could produce a potential conflict if the wrong combination of themes and plugins is used on your site.

To prevent this from happening developers are encouraged to use namespaces and scopes that isolate their functions from colliding with other functions but this is not always done correctly.

We hope this reference helps you to find PHP Fatal error: Cannot redeclare is_user_online()

The following 3 plugins register a function called is_user_online():

Plugin
bbp user online status
WP-UserOnline
Mingle Users Online