wpsnoop Function wm_horizontal_tree() conflicts found in 2 plugins

A php function called wm_horizontal_tree() is used in 2 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 wm_horizontal_tree()

The following 2 plugins register a function called wm_horizontal_tree():

Plugin
Nested Pages (Tree Page View)
Tree Website Map