wpsnoop Function tinymce_add_button_preview() conflicts found in 2 plugins

A php function called tinymce_add_button_preview() 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 tinymce_add_button_preview()

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

Plugin
Ultimate TinyMCE
Simple TinyMCE