wpsnoop Function wfs_visibility_checking() conflicts found in 4 plugins

A php function called wfs_visibility_checking() is used in 4 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 wfs_visibility_checking()

The following 4 plugins register a function called wfs_visibility_checking():

Plugin
Webfonts
Webfonts
Webfonts
Webfonts