add missing duplicate function check

[sh-sabbir]

No description provided.

[ocean90]

@sh-sabbir Hey, could you please explain why this change is necessary?

[sh-sabbir]

In my sane mind I can assume nobody or no plugin will create a method named "wordpresa_importer_init". But what if anyone does that? What will happen then? This function is not a part of a class & will result not working or breaking the website as soon as someone installs the plugin. It's a good practice to check for duplicate methods while declaring method outside a class.

[dd32]

I don't think this change is necessary. The function is properly "namespaced" by being prefixed with the plugins name. We can't wrap every prefixed function/class name just in case someone else decides to use it.

For this to cause a problem, another plugin would need to use a clashing name, and not include function_exists() themselves, and create that function after both that function and this importer plugins were activated (As the WordPress plugin activation flow verifies that it doesn't cause a fatal error).