wpsnoop Function has_flexible() conflicts found in 2 plugins

A php function called has_flexible() 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 has_flexible()

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

Plugin
Advanced Custom Fields: Extended
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