wpsnoop Function is_filtered() conflicts found in 4 plugins

A php function called is_filtered() 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 is_filtered()

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

Plugin
WooCommerce
ColorShop
Norsani, The Multi-Vendor online Food Ordering System.
PayPal Shopping Cart