wpsnoop Function is_search_engine() conflicts found in 2 plugins

A php function called is_search_engine() 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 is_search_engine()

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

Plugin
WP-Referrers
Insert Query As Tag