wpsnoop Function canonical() conflicts found in 4 plugins

A php function called canonical() 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 canonical()

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

Plugin
Login with Google Apps
Knit Pay
Pronamic Pay
WS-Fed client by miniOrange