wpsnoop Function digital_books_post_thumbnail() conflicts found in plugins 2 themes

A php function called digital_books_post_thumbnail() 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 digital_books_post_thumbnail()

The following 2 themes register a function called digital_books_post_thumbnail():

Theme
Digital Books
Book Publisher