wpsnoop Function is_valid_charset() conflicts found in 17 plugins
A php function called is_valid_charset() is used in 17 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_valid_charset()
The following 17 plugins register a function called is_valid_charset():