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This fixes #25
The issue is that the count method of checking if an array is multidimensional does not account for an edge case of a sub empty array:
https://3v4l.org/16rVK
This issue is discussed rather in depth here: https://stackoverflow.com/questions/145337/checking-if-array-is-multidimensional-or-not
Based off the testing done by the solution poster, this method of testing for a multidimensional array is the fastest while producing the correct output:
This PR adds a private method
isMultidimensionalArray
implementing that method.I have tested this locally and it works properly, let me know if I need to create a test for it.